Question

What is Acceleration ??
.
.
.
.
.
.
.
Let her answer​

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.

Answer 2

Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. $\:$

Same here.. but why you wasting your points?