Question

what is acceleration​

Answer 1

Answer:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

Explanation:

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Answer 2

Answer:

acceleration is rate of change in velocity per unit time

and velocity is displacement per unit time

acc is a vector quantity

when a body is under uniform velocity acc is 0