Question

a car start from rest attains speed 20m/s in20 second what is its acceleration

Answer 1

i hope it will help u....

Answer 2

Hey there!

Initial velocity, u = 0m/s

Final velocity, v = 20m/s

Time taken, t = 20 sec

by using First Eqn. of Motion,
We get,

v = u + at

Thus,

a = v-u/t

= 20-0/20

= 1 m/s

HOPE IT HELPS ^_^