Question

A car of mass 1000kg is moving with a velocity of 20m/s applies brake and comes to rest in time 20

seconds find out forced applied by the brake to stop the car?​

Answer 1

Answer:

1000

Explanation:

given data

mass=1000kg

initial velocity=20m/s

final velocity=0

time=20

required data

force=?

solution

as we know that

acceleration= change in velocity/ change in time

a= (Vf-Vi) ÷t

a=(0-20)÷20

a=20÷20

a=1

now find force

force=mass×acceleration

f=ma

f=1000×1

f=1000