Question

define acceleration ???​

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

Acceleration is defined as the rate of change of velocity with respect to time. It is a vector quantity and its SI unit is m/s2 (metre per second square).

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