Question

A car moving at 20 m/s comes to rest in 10 s.
What is its acceleration?​

Answer 1

Answer:

V=0

U=20m/s

S=10m

Hence, Newton's equation...

V^2= U^2+2as

20^2= -2(10)a

a= 400/-20

a= -20m/s^2

Hope it helps to u......

Answer 2

acceleration = velocity / time

acceleration=20/10

2m/s2