## Answer :

Acceleration is the rate of change of velocity with time.}

Acceleration is the rate of change of velocity with time.

Displacement is the other name of distance

v =D/T

ITS S.I UNIT IS m/sec

and

Acceleration is the rate of change of velocity. it is a vector quantity . its formula

a = v-u/t

ITS S.I UNIT IS m/s²

it is the ans of first one