Question

a body is moving with a velocity of 12 metre per second and it comes to rest in 18 seconds what was the acceleration​

Answer 1

Explanation:

U=12m/s

v=0m/s

s=18m

t=5 sec

v-u/t=a

a=0.11

Answer 2

Answer:

Explanation:

Final velocity (v)=0 (since the body finally cones to rest)

Initial velocity (u)=12m/s(given)

We know-

a(acceleration)=(v-u)/t

a=(0-12)/18

a=-12/18

a=-0.666m/s^2(negative sign is due to the retardation.