Question

A car attains a uniform velocity of 72km/h in 10 second after starting from rest. calculate it's acceleration

Answer 1

a=v-u/t
Here
T=10
V=72km/h
=72*5/18 m/s
=20m/s
U=0

Now acceleration = 20-0/10
=20/10
= 2 m/s²