Question

a car moves in 20 m/s velocity, in 15 second, the acceleration during this time is .....

Answer 1

Hey mate

Your answer is

The acceleration during this time is

acceleration =velocity /time

= 20/15
= 1.3 m/s^-2

Answer 2

U=20m/s

V=0m/s

T=15sec

V=u+at

0=20+15*a

-20=15*a

-20/15=a

a=1.33m/s*2

Hope that it will help u out.....