Question

what is acceleration ?​

Answer 1

Answer:

Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

Answer 2

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Acceleration is a measure of the change in the velocity of an object per unit time.

• Three types of acceleration are changes in speed, direction and both simultaneously. The word "velocity" is often used in place of speed.