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Assuming that acceleration is constant during that time, just divide the change in speed by the time.

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Q: Acceleration is defined as a change in velocity over time if a runner increases velocity from 2 m s to 4 m s over a period of 20 seconds what is the acceleration?
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Can be defined as the rate at which velocity changes?

accelerationThe rate at which velocity changes is called "acceleration".


What is defined as the rate at which velocity changes?

acceleration


What is the acceleration of a ball that is traveling at a constant velocity of 50 meters per second and has been traveling for 2 minutes?

zero - it is constat velocity. so acceleration is zero50 m/s2 Another : The acceleration is ZERO. Acceleration is defined as the change in velocity per unit time. If the ball is traveling a constant velocity over a two minute period, the acceleration would be zero since there is no change in velocity.


When an object's initial velocity is less than its final velocity what does that indicate?

AccelerationWhen the velocity of an object increases or decreases, that means it has accelerated. Acceleration is defined as the rate of change of velocity.If an object's final velocity is greater than its initial velocity, that indicates positive acceleration. If an object's final velocity is less than its initial velocity -- if, say, it slows down and comes to a stop -- then that indicates negative acceleration. Deceleration is another way of saying negative acceleration. But . . .It is good idea to avoid using the term deceleration, because an object that is experiencing negative acceleration may slow down, come to a stop momentarily, and then reverse direction and speed up -- IN THE OPPOSITE DIRECTION!You can think of it this way: When an object is slowing down, its acceleration is in the direction opposite to its motion. We think of that as negative acceleration.


Is it possible for a body to have an acceleration when moving with constant speed explain?

Yes, it's acceleration will be zero because the velocity isn't changing, but it has an acceleration. Think of it in terms of integration and derivation. Acceleration is the derivative of velocity, so if velocity is a constant number the acceleration must be zero.Generally if value of acceleration is "zero", we consider it to mean that there is NO acceleration. The question that was actually answered above was "Can acceleration be DEFINED fora body moving at constant speed?"It is possible for an object to be moving at a constant angular speed and yet have an effective acceleration in a tangential direction.===========================================Both of you guys are missing the most important point here, with the resultthat you have to twist your own arm almost to the point of dislocation in orderto state an answer.The essential underlying consideration is that, contrary to popular misconception,"acceleration" does not mean 'speeding up', or even 'changing speed'. It means"change in velocity", and "velocity" means "speed anddirection". If either speedor direction change, then that means there is 'acceleration'.The answer to the question is simple, and almost entirely non-technical. It is:"Yes, because 'acceleration' means change of either speed or direction. So, ifthe direction of the body's motion is changing, then the body has acceleration,even if its speed is constant."

Related questions

What can Acceleration be defined as?

Velocity divided by time. The amount the the velocity increases by per second.


Is velocity the same as acceleration?

Both are vectors. But acceleration and velocity have different dimensions. Acceleration is defined as the rate of change of velocity.


Can an object be accelerating with constant velocity?

No, since acceleration is defined as a change in velocity. If there is no change, there is no acceleration.


Can be defined as the rate at which velocity changes?

accelerationThe rate at which velocity changes is called "acceleration".


If an object is moving at a constant velocity what do you know about its acceleration?

"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.


How is acceleration similar to velocity?

Acceleration is the RATE OF CHANGE of velocity. That means that acceleration and velocity have different units.The only similarity is that both are defined as rates of change.


Acceleration is defined as a change in velocity over time . If a runner increases velocity from 2 ms to 4 ms over a period of of A seconds what is her acceleration?

It is 0.1 metre per second-squared.


Does acceleration always result from a change in velocity?

Acceleration is defined as the rate of change of velocity... so, yes.


What is acceleration multiplied by time?

Since acceleration is defined as change of velocity divide by time, it has units of (velocity / time). acceleration x time = (velocity / time) x time = velocity


What is her acceleration if 'acceleration is defined as a change in velocity over time. If a runner increases velocity from 2 ms to 4 ms over a period of 20 seconds?

It is 0.1 metre per second-squared.


What Acceleration is defined as a change in velocity over time. If a runner increases velocity from 2 ms to 4 ms over a period of 20 seconds what is her acceleration?

It is 0.1 metre per second-squared.


Acceleration is defined as a change in velocity over time. if a runner increases velocity from 2 ms to 4 ms over a period of 20 seconds what is her acceleration?

It is 0.1 metre per second-squared.