Answer:
The crumpled paper hits the ground first due to air resistance. The crumpled paper has less surface area than the flat paper, therefore the crumpled paper hits first.
I hope this helped. If you could mark brainliest that would be greatly appreciated.
Answer:
Crumpled paper
Explanation:
because it has less surface area than flat paper and resistance force is not acting on it
Simple Harmonic Motion
Assignment Acire
Analyzing the Motion of a Spring
At which point(s) is the net force the greatest?
At which points) is the net force zero?
muman
- The net force is greatest at the position of maximum displacement
- The net force is zero when at the equilibrium position
Explanation:
The motion of a spring is a Simple Harmonic Motion, in which the displacement of the end of the spring is given by a periodic function of the form
[tex]x=Asin (\omega t)[/tex]
where A is the amplitude (the maximum displacement), and [tex]\omega[/tex] the angular frequency of the motion.
We can analyze the net force acting on the spring by looking at Hooke's law:
[tex]F=kx[/tex]
where
F is the net force
k is the spring constant
x is the displacement
From the equation, we notice immediately that:
The net force is the greatest when the displacement x is the greates, so at the position in which the spring has maximum compression or stretchingThe net force is zero when the displacement x is zero, so when the spring crosses the equilibrium positionLearn more about forces:
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Answer:
An illustration of a mass on a vertical spring with a transverse wave showing the position of the mass on the spring will make a transverse wave shape if bouncing up and down and moving horizontally. The shortest spring has the mass at the top of each crest and are labeled A and E respectively. The position where the mass in in the trough of the transverse wave would be labeled C and stretches the spring the farthest. The middle length springs has masses where the equilibrium of the material of the medium containing the transverse wave would be at the equilibrium of the material would be and are labeled B and D.
At which point(s) is the net force the greatest?
A,C, and E
At which point(s) is the net force zero?
B and D
Explanation:
Got it from engenuity
A force of 40 N is applied to a 6 kg box of books. If the frictional force acting on the box is 16 N, and the box was initially at rest, what is the velocity of the box 10 s later? What is the box’s displacement over the 10 s period?
The final velocity is 40 m/s. The box will undergo a displacement of 200 m over the period of 10 s.
Answer:
Explanation:
So the net force acting on the box of books will be the difference of normal force and frictional force acting on the box. As the normal force acting on the box is 40 N and the frictional force is 16 N, then the net force is
Net force = 40 N - 16 N = 24 N.
Also, the mass of the box is given as 6 kg. So as per second law of motion, the acceleration can be found by ratio of net force to mass of the object.
Acceleration of the box = Net force/Mass = 24/6=4 m/s².
Then velocity can be determined using the first equation of motion.
v = u + at =0 + (4× 10 s) = 40 m/s.
So the final velocity is 40 m/s.
Similarly, by using the second equation of motion,
s = ut +1/2 at²
s = (0×10)+(0.5×4×10×10)=200 m
And so, the box will undergo a displacement of 200 m over the period of 10 s.
What kind of line on a distance vs. time graph indicates that the object is accelerating?
Answer: a curved line
Explanation: a straight line indicates that the object is moving at a constant velocity because it has one slope, but a curved line on a distance-time graph indicates that the velocity is constantly changing because the slope is changing, which is acceleration. the line could be curved in any direction, as long as it shows a change in slope.
Final answer:
A curved line on a distance vs. time graph indicates that the object is accelerating. For constant acceleration, this curve will be parabolic. Acceleration is the slope of the tangent on the velocity vs. time graph derived from the distance-time graph.
Explanation:
On a distance vs. time graph, an object that is accelerating will not have a straight line but rather a curved line. This curve represents the change in speed over time. If the object is speeding up, the curve will be getting steeper, which indicates positive acceleration. In the case of constant acceleration, the distance-time graph is a parabola. The acceleration can be determined from the slope of the velocity vs. time graph, which in turn can be derived as the derivative of the position function from the distance-time graph. In conclusion, an accelerating object will be represented by a curved line on a distance vs. time graph, with the curvature indicating the acceleration's direction and magnitude.
24. a. Calculate the work needed to lift a 90-N
block of ice a vertical distance of 3 m. What
PE does it have?
Answer:
270J
Explanation:
Work = force x distance
Force =90N
Distance =3m
Work = 90 x 3
Work = 270J
P. E= 270J
I hope this was helpful, Please mark as brainliest= work / time
The work needed to lift the 90-N block of ice 3 m vertically is 270 J, and the block possesses 270 J of potential energy.
Work Done: To calculate the work done in lifting a 90-N block of ice 3 m vertically, you use the formula: Work = force x distance. So, Work = 90 N x 3 m = 270 J. The potential energy (PE) of the block at that height is equivalent to the work done, so the block has 270 J of potential energy.
A sprinf has a potential energy of 84.08 J and a constant of 342.25 N/m. How far it been stretched? Use potential energy elastic equation (1/2kx^2)
The spring has been stretched 0.701 m
Explanation:
The elastic potential energy of a spring is the potential energy stored in the spring due to its compression/stretching. It is calculated as
[tex]E=\frac{1}{2}kx^2[/tex]
where
k is the spring constant
x is the elongation of the spring with respect to its equilibrium position
For the spring in this problem, we have:
E = 84.08 J (potential energy)
k = 342.25 N/m (spring constant)
Therefore, its elongation is:
[tex]x=\sqrt{\frac{2E}{k}}=\sqrt{\frac{2(84.08)}{342.25}}=0.701 m[/tex]
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Mercury, Venus, and Earth are the three planets closest to the Sun. The force of gravity on the surface of each planet is different. Which of the following places these three planets in order from greatest surface gravity to least?
A.
Mercury, Venus, Earth
B.
Earth, Venus, Mercury
C.
Earth, Mercury, Venus
D.
Venus, Earth, Mercury
Answer:
B. Earth, Venus, Mercury
Explanation:
if a substance cannot be separated physically or chemically it is?
Answer:
it would be an element as elements can not be broken down into something else
What is unique about Neptune's discovery?
A)It was discovered by Kuiper
B)It was the first planet located through mathematical calculations
C)It was the first planet located through a telescope.
D) It's located right after the asteroid belt.
Please help!!! i will give brainliest *If Right*
Answer:
the answer is
B)It was the first planet located through mathematical calculations
The correct answer to the question is B) It was the first planet located through mathematical calculations. Neptune's discovery is unique because it was the first planet located through mathematical calculations, based on the gravitational effects observed in Uranus' orbit. This innovative approach was a monumental achievement in astronomy.
What is unique about Neptune's discovery? The unique aspect of Neptune's discovery lies in its method. Neptune was the first planet located not by direct observation but through mathematical calculations. This groundbreaking approach marks Neptune's discovery as a significant achievement in the field of astronomy.
The deviation in Uranus' orbit puzzled astronomers. This irregularity was attributed to the gravitational pull of an unknown planet, later identified as Neptune. Following these calculations, Neptune was discovered in 1846, right where it was predicted. This method of discovery, using the principles of gravitational theory and mathematical predictions rather than direct observation or accidental sighting, set Neptune apart from the discoveries of other planets.
Describe what is meant by “a constant change of direction”. Identify whether the examples provided
show a constant change of direction when moving. (S8P3a)
a. A merry-go-round spinning in circles.
b. A wind vane swinging around.
c. A kid walking on a straight path.
A constant change of direction implies ongoing alterations in the course of movement, typically involving centripetal acceleration. A merry-go-round and a wind vane demonstrate this, while a kid walking straight does not.
"A constant change of direction" refers to a situation where an object or point is continually altering the course of its movement. In the context of physics and motion, this typically indicates the presence of centripetal acceleration, which is the acceleration directed towards the center of a circular path that keeps an object moving in a curve rather than a straight line.
A merry-go-round spinning in circles displays a constant change of direction due to the rotational movement with each point on the ride continuously changing its direction as it moves in a circle.
A wind vane swinging around also shows a constant change of direction as it repeatedly changes which way it's pointing due to shifting wind directions.
A kid walking on a straight path does not exhibit a constant change of direction because the motion is linear and not curved.
What is the defenition of mass
Answer:
the total matter contained in a body is called mass
PLZ HELP 150 POINTS AND BRAINLIEST
If effort is applied to the wheel, the axle turns with more _______.
If effort is applied to the axle, the wheel turns ______ and ______ than the axle.
The road wheel on a car multiply the _______ of the rear axle.
Applying a light force to turn the steering wheel of a car produces a strong force on the _________.
Answer:
A wheel and axle may either increase or decrease the input force, depending on whether the input force is applied to the axle or the wheel. ... Because the output force is less than the input force, the mechanical advantage is less than 1. However, the wheel turns over a greater distance, so it turns faster than the axle.
If you apply a force to the wheel (the handle), the wheel spins and multiplies the effort to make the output force of the axle (shaft) greater.
The drive shaft, which on most cars runs the length of the vehicle to the rear wheels, turns as the combustion engine burns gasoline. The turning drive shaft sends power to the rear axle and wheels, which cause them to turn as well, moving the car forward
There some moments when the steering wheel becomes stiff and hard to turn. From irregular servicing, lack of fluid oil to low tyre pressure or bad wheel alignment, any of these could be the cause
hope it helps plz Mark me brainliest :)
Consider the gravity of the four spheres. If we wanted sphere C to attract the other three spheres, what is one feature of sphere C we must change?
A) Increase its mass.
B) Make it less dense.
C) Increase its diameter.
D) Change its composition.
Answer:
The correct answer is A.
Explanation:
A greater mass means a greater gravitational pull. To give Sphere C more gravitational pull you mus increase its mass
If a particle with a charge of +4.3 × 10−18 C is attracted to another particle by a force of 6.5 × 10−8 N, what is the magnitude of the electric field at this location?
2.2 × 1026 NC
2.8 × 10−25 NC
1.5 × 1010 N/C
6.6 × 10−11 N/C
Answer: 1.5×10^10 N/C
Explanation:
E= F/q
Where E= magnitude of the electric field
F= force of attraction
q= charge of the given body
Given F= 6.5×10^-8 N
q= 4.3× 10^-18 C
Therefore, E = 6.5×10 ^-8/ 4.3×10^-18
E = 1.5×10^10 N/C
Answer:
1.5*10^10 N/C
Explanation:
The Force per Charge Ratio
Electric field strength is a vector quantity; it has both magnitude and direction. The magnitude of the electric field strength is defined in terms of how it is measured. Let's suppose that an electric charge can be denoted by the symbol Q. This electric charge creates an electric field; since Q is the source of the electric field, we will refer to it as the source charge. The strength of the source charge's electric field could be measured by any other charge placed somewhere in its surroundings. The charge that is used to measure the electric field strength is referred to as a test charge since it is used to test the field strength. The test charge has a quantity of charge denoted by the symbol q. When placed within the electric field, the test charge will experience an electric force - either attractive or repulsive. As is usually the case, this force will be denoted by the symbol F. The magnitude of the electric field is simply defined as the force per charge on the test charge.
ELECTRIC FIELD STRENGTH= FORCE/CHARGE
If the electric field strength is denoted by the symbol E, then the equation can be rewritten in symbolic form as
E=F/q
I got this from electric field intensity; physics classroom.
https://www.physicsclassroom.com/class/estatics/Lesson-4/Electric-Field-Intensity
and please no one should report me. was just trying to help. And I already got a warning. PLEASE!!! THANK YOU VERY MUCH.
and also this picture of me doing the test explains everything
.Hope I helped
What is the amount of work done when a force of 10N moves a 20kg mass of 8 meters?
Yo sup??
we should know that
work done=force*displacement
W=F.s
F=10 N
s=8 m
therefore
W=10*8
=80 N
Hope this helps.
Final answer:
The work done when a 10 N force moves a 20 kg mass 8 meters is 80 Joules.
Explanation:
The work done can be calculated using the formula: Work = Force x Distance
Given that the Force is 10 N and the Distance is 8 meters, the work done is:
Work = 10 N x 8 m = 80 Joules.
ionic bonds form between what
the base of a rectangular vessel measure 10m by 18cm. water is poured into a depth of 4cm. (a) what is the pressure on the base?. (b) what is the thrust on the base?.
Answer:
a) P =392.4[Pa]; b) F = 706.32[N]
Explanation:
With the input data of the problem we can calculate the area of the tank base
L = length = 10[m]
W = width = 18[cm] = 0.18[m]
A = W * L = 0.18*10
A = 1.8[m^2]
a)
Pressure can be calculated by knowing the density of the water and the height of the water column within the tank which is equal to h:
P = density * g *h
where:
density = 1000[kg/m^3]
g = gravity = 9.81[m/s^2]
h = heigth = 4[cm] = 0.04[m]
P = 1000*9.81*0.04
P = 392.4[Pa]
The force can be easily calculated knowing the relationship between pressure and force:
P = F/A
F = P*A
F = 392.4*1.8
F = 706.32[N]
a). The pressure that lies on the base would be:
[tex]P =392.4[Pa][/tex]
b). The thrust that exists on the base would be:
[tex]F = 706.32[N][/tex]
a). Given that,
Length of the rectangular vessel [tex]= 10m[/tex]
The Breadth of the rectangular vessel [tex]= 18cm or 0.18m[/tex]
Area of the vessel [tex]= L[/tex] × [tex]B[/tex]
[tex]= 10[/tex] × [tex]0.18[/tex]
[tex]= 1.8m^2[/tex]
To find the pressure,
Pressure(p) = Density × g × h
With
Density [tex]= 1000 kg/m^3[/tex]
Gravity(g) = [tex]9.81m/s^2[/tex]
Height(h) = [tex]4 cm[/tex] or [tex]0.04m[/tex]
So,
P [tex]= 1000[/tex] × [tex]9.81[/tex] × [tex]0.04[/tex]
∵ [tex]P = 392.4[/tex]
b). Since,
Pressure [tex]= F/A[/tex]
⇒ [tex]F = P[/tex] × [tex]A[/tex]
⇒ [tex]F = 392.4[/tex] × [tex]1.8[/tex]
∵ Thrust or Force [tex]= 706.32 N[/tex]
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Which of the following is an effect of increasing the wavelength of an
electromagnetic wave?
Effect of increasing the wavelength of an electromagnetic wave
Explanation:
1.Wavelength = speed of light/frequency.
2.The frequency of an electromagnetic wave increases as wavelength decreases.
3.As wavelength decreases (and frequency increases) energy increases.
4.When frequency increases more wave crests pass a fixed point each second. That means the wavelength shortens. So, as frequency increases, wavelength decreases. The opposite is also true—as frequency decreases, wavelength increases.
Answer:
Energy decrease
Explanation:
While frequencies increase, energy increase
while wavelength increase, energy decrease
Suppose you and a friend are standing at opposite ends of a gymnasium and one of you claps will the other person hear the clap at the same time she sees it happen explain why or why not
Answer:
she will not because when it bounces off that is when u hear it
Explanation:
Answer:
No. Your friend will not hear the clap when he/she sees it.
Explanation:
Can water and wind change the shape of a mountain
Yes, Water and wind can change the shape of a mountain through the process of erosion. The mountains' sharp peaks and edges evolve from these erosive forces rather than their initial formation. In contrast, the Moon's mountains remain smooth because of the lack of water and wind erosion.
Yes, water and wind can indeed change the shape of a mountain. Through the process of erosion, elements such as water and ice weather the rocks of mountain ranges, reshaping their profiles over time. For instance, the sharp peaks and serrated edges of mountains are not the direct result of the forces that initially upthrust the crust to form the ranges; instead, these features develop from erosional processes that gradually tear down the mountains. Ice erosion, in particular, acts as a powerful sculptor of mountainous terrain.
Additionally, mountain grasses are influenced by strong winds, which can bend them and alter the landscape over time. During different times of day, mountain-valley winds occur due to temperature variations that cause air to rise or fall along mountain slopes, which can also impact the mountain's shape gradually. The same is true for ocean waves, which wear away the land and change the shapes of coastlines. The formation of the 'The Wave' at Vermillion Cliffs, along the Utah and Arizona border, is an example of how erosion by water and wind can sculpt landforms.
Contrasting with the earth, the Moon provides an example of how mountains look when they are not sculpted by these erosive forces. The Moon's highlands have a smooth and dulled appearance due to the absence of water and wind erosion, offering a stark comparison to Earth's dynamic erosive processes.
A wave oscillates 5.0 times a second and has a speed of 4.0m/s what is the frequency of this wave
The frequency of a wave oscillates 5.0 times a second and has a speed of 4.0m/s is F=5Hz
what is the frequency of this wave?Question Parameters:
A wave oscillates 5.0 times a second and has a speed of 4.0m/s
Generally, the equation for the Frequency is mathematically given as
F=v/\lambda
Or
F=1/T
Therefore
Frequency is simply the amount of times the wave oscillates
In conclusion, The frequency of the wave is
F=5Hz
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Final Answer:
The frequency of the wave is 5.0 Hz.
Explanation:
The frequency of a wave is the number of oscillations it makes per second. In this case, the wave oscillates 5.0 times a second, so the frequency is 5.0 Hz. The frequency of a wave is a fundamental characteristic determined by the number of oscillations it completes in one second. This measurement, expressed in hertz, represents the cycles or oscillations per second. It is a crucial parameter in understanding wave behavior and is essential in various fields such as physics, telecommunications, and engineering. The relationship between frequency, speed, and wavelength is described by the wave equation, where frequency and speed are inversely proportional.
Which of these waves CANNOT travel through the vacuum of space?
What is the force that holds protons together in the nucleus? (They should repel each other since they are positively charged)
The force is the strong nuclear force.
Explanation:
Every atom has a nucleus and various orbits surrounding it. The protons and neutrons are present in the nucleus while the electrons orbit around the nucleus. Protons are held together in the nucleus by the strong nuclear force. It is also called as the strong force. It holds together the subatomic particles within the nucleus. The nuclear force is the strongest of the four fundamental forces. Although it is the strongest, it can only act over short distances which are nuclear in length.Find the total kinetic energy of a 10 kg object traveling at 5 m/s to the right and a 15 kg object traveling at 10 m/s to the left?
Answer:875joules
Explanation:
Johanna makes the table below to organize her notes about centripetal forces.
A 2 column table with 3 rows. The first column is labeled Circular Motion with entries a space station in orbit, a child in a swing, a ball on a string. The second column is labeled Centripetal Force with entries x, blank, blank.
Which type of force should she place in the cell marked X?
tension
gravity
friction
normal
Answer is gravity
Answer:
Gravity, or B should be placed in the Cell labeled “X”
Explanation:
2021, Edge
Gravity is the type of force should she place in the cell marked X.
What is meant by Gravity?Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.Newton came up with the idea that some unseen force must attract the apple towards the Earth. He named this force “gravity”.Gravity is the type of force should she place in the cell marked X.
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Write your question here (Keep it simple and clear to get the best answer)what is the dimensions of angular velocity
Answer:
The dimensions of angular velocity is [tex][T^{-1}][/tex]
Explanation:
We know that linear velocity is equal to the rate of change of linear displacement.
Similarly, in rotational motion, the analogous term for linear velocity is angular velocity.
Angular velocity is defined as the rate of change of angular displacement.
The angular displacement is the measure of the angle rotated by an object about a fixed point or the axis of rotation.
Therefore, the unit of angular displacement is measured in radians. We know that, the radian is a dimensionless quantity. So, its dimension is [tex][M^0L^0T^0][/tex]
Now, time is measured in seconds. So, dimension of time is [tex][M^0L^0T][/tex]
Therefore, the dimensions of angular velocity is given as:
[tex]Angular\ velocity =\frac{Angular\ displacement}{Time}\\\\Dimensions=\frac{[M^0L^0T^0]}{[M^0L^0T]}\\\\Dimensions =[T^{-1}][/tex]
Therefore, the dimensions of angular velocity is [tex][T^{-1}][/tex]
Tishaura decides to do an experiment to determine which type of sock
absorbs the most sweat. Which of these describes her doing step two of the
inquiry process?
A. Tishaura asks herself which of the three types of socks in her
drawer seems to be the most absorbent.
B. Tishaura finds that all-cotton socks weigh 0.1 ounce more after
she runs in them.
C. Tishaura measures the weights of four different kinds of socks
before and after she goes running.
D. Tishaura predicts that all-cotton socks will absorb the most sweat,
because she thinks cotton is very absorbent.
Answer:
D. Tishaura predicts that all-cotton socks will absorb the most sweat, because she thinks cotton is very absorbent.
Explanation:
The steps for scientific inquiry should be:
1. Observation
In this phase, you observe things that pique your interest and formulate a scientific question. This should be option A where Tishaura wonders which sock most absorbent.
2. Hypothesis.
The second step is making a hypothesis, educated guess about what the research result will be. This should be the option D, Tishaura expects that cotton sock absorbs more than others.
3. Experiment
In the third step, you test the hypothesis by designing and doing an experiment. It will be option C.
4. Analysis of experimental results
Gathering the result and doing analysis to find out if the hypothesis true. Tishaura found that all-cotton sock weight more. This process will be option B
5. Make a conclusion;
Determine whether you accept the hypothesis or not. There is no option that describes this process.
Step two of the inquiry process should be option D
Think about the process of heating water, the heating and upward motion of hot steam and air, and the spiral spinning. For these events, list each form of energy associated with the heat source, the water, the steam and air, and the spiral.
Kinetic Energy Forms:
-Motion Energy
-Thermal Energy
-Electric Energy
-Vibrational Energy
-Radiant Energy
Potential Energy Forms:
-Gravitational Potential Energy
-Elastic Potential Energy
-Chemical Potential Energy
-Electric Potential Energy
-Magnetic Potential Energy
-Nuclear Potential Energy
The process involves various energy forms. The heat source equates to chemical potential energy, transitioning into thermal energy. The heated water and upward moving steam embody thermal energy, while the latter also impiles kinetic and gravitational potential energy.
Explanation:In the process mentioned:
The heat source that is used to heat the water is displaying chemical potential energy, which undergoes transformation into thermal energy when the heat source is ignited.The hot water itself harnesses thermal energy, which is the energy related to the temperature and internal energy of the water system.Hot steam and air moving upwards is another instance of thermal energy, with the added element of kinetic energy due to the upward motion. The rise of heated air and steam can also be seen as a conversion of thermal energy into gravitational potential energy.The spiral spinning invokes kinetic energy, particularly rotational kinetic energy, to produce the spinning motion. This is a direct result of the interaction between the heated air (thermal energy) and the colder surrounding air.Learn more about Forms of energy here:https://brainly.com/question/29471089
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If the energies sound in the device is microphone what is the energy out
Answer:
Microphones are a type of transducer - a device which converts energy from one form to another. Microphones convert acoustical energy (sound waves) into electrical energy (the audio signal). Different types of microphone have different ways of converting energy but they all share one thing in common: The diaphragm.
Explanation:
Study the scenario.
A box is initially at the top of a slide, storing 80 J of gravitational energy. The isolated system includes the box, slide and earth.
As the box slides down the frictionless slide, what happens to the total energy of the system?
a) The total energy of the system increases to more than 80 J of energy as it gains other forms of energy
b) The isolated system stores 80 J of total energy, but it is converted to a different form of energy.
c) The isolated system stores slightly less than 80 J of total energy, and it is converted to a different form of energy
d) The total energy of the isolated system decreases to 0 once the box reaches the bottom of the slide.
Answer:
b) The isolated system stores 80 J of total energy, but it is converted to a different form of energy.
Explanation:
The Law of Conservation of Energy states that in an isolated system the total energy always remains constant. In our context this means that the box's energy cannot disappear from the isolated system of the box, slide, and the earth. Abiding the Law of Conservation of Energy, as the box slides down the friction-less table, its gravitational potential energy is converted into its kinetic energy.
Thus, in accord with the Law of Conservation of Energy, the energy of the system can neither decrease or increase, but is converted from one from to another. This rules of choices A, B, and C, leaving only choice B as correct.
If C moves to position 5 (60 meters), what is its average velocity during these 5 seconds?
(A
10 m/s
(B
11 m/s
C)
12 m/s
D)
13 m/s
If C moves to position 5 (60 meters), the average velocity during these 5 seconds is 12m/s
Explanation:
Velocity can be defined as the rate of change of position with respect to the time.Velocity is the vector quantity as it indicates displacement direction and time.Average velocity of an object is total displacement by total time.
Velocity can be calculated by using formula v=d/t. where v=velocity, d=distance and t= time duration.
Average velocity can be calculated by, v= (Δx)×(Δt) Where Δx is the total displacement of the body and ∆t is the time.
The SI unit of velocity is m/s.
Answer:
12 m/s
Explanation:
The average velocity is simply the change in displacement over the specified time interval. In this case we have a total of five intervals, which represents 5 seconds. Dividing 60 m by 5s, gives us 12 m/s, which is the magnitude of the average speed in the interval.