Question

what is acceleration

Answer 1

Change in velocity of a moving object is called velocity. Velocity can be positive, negative and constant.
:-)

Answer 2

$\textsf{Acceleration:-}$

____________________________________

Acceleration is seen in non-uniform acceleration & it can be defined as the rate of change of velocity with time.

☆Acceleration (a) = change in velocity/time = v-u/t

•Where v is the final velocity and u is the initial velocity.