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Q: What is acceleration when velocity is constant?

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the velocity increases at a constant rate

No, the definition of acceleration is the increase change in velocity over time. An acceleration can also be a decrease in velocity over time. Constant velocity refers to an object that maintains the same velocity as time progresses. If the object has an acceleration, its velocity will not remain constant. In the case of rotational velocity there is a constant internal acceleration that has the magnitude v2/r

Yes, it is constant at zero. I.e. there is no acceleration so velocity must be constant

If the velocity is constant, then the acceleration is zero.

a=dv/dt. By definition, acceleration is the rate of change of velocity. In mathematical notation, it is given as the formula stated above. Two special cases: 1. When acceleration is constant: The rate of change is a constant. Therefore, it can be calculated by: a=(vf - vi) / t where a is acceleration vf is final velocity vi is initial velocity and t is time taken 2. When velocity is constant: Velocity is not changing. The rate of change of velocity is zero. Acceleration has to be zero. * * * * * Note that velocity and acceleration are both VECTORS. Therefore, an object going round in a circle, at CONSTANT speed, has velocity and acceleration that are changing all the time - because the direction of motion is changing.

Related questions

If your velocity is constant, then your acceleration is zero.

If you have constant acceleration, then you can't have constant velocity. (Unless the acceleration is constantly zero.)Final velocity = [initial velocity] + [ (acceleration) x (time) ]

Yes. If a body has a constant velocity there is no acceleration, but if the velocity is changing there is acceleration present.

Acceleration is change of velocity. If velocity is constant ... "no change" ... then acceleration is zero.

Acceleration is the rate of change of velocity. Constant velocity means zero acceleration.

If the velocity is constant then there is no acceleration. The acceleration is zero.

If the velocity is constant then there is no acceleration. The acceleration is zero.

An object with constant velocity has no acceleration.

That can't happen. If there is any acceleration at all, then velocity is not constant.

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

No; acceleration means the velocity changes.No; acceleration means the velocity changes.No; acceleration means the velocity changes.No; acceleration means the velocity changes.

the velocity increases at a constant rate

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