Question

what is acceleration
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Answer 1

Answer:

Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. ... Acceleration is defined as the change in the velocity vector in a time interval, divided by the time interval.

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Answer 2

Answer:

It is a measure of the change in the velocity of an object per unit time. Accelearation can be caused either by change in direction of motion or change in speed or both .