Question

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Answer 1

Answer:

Acceleration is the rate at which velocity changes. In symbols, average acceleration ˉa is ˉa=ΔvΔt=vf−v0tf−t0. The SI unit for acceleration is m/s2 . Acceleration is a vector, and thus has a both a magnitude and direction. Acceleration can be caused by either a change in the magnitude or the direction of the velocity.17-Dec-2019