Answer :

[Velocity is the distance teavelled by a moving object in a particular direction.
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
velocity :- the rate of change of displacement .

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

 


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