Question

A body of mass 8 kg is moving with the velocity of 20 m/s. When brakes are applied it stops after travelling the distance of 8m. Find the retardation & the retarding force.​

Answer 1

Answer:

Retardation =50 m/s^2

Force= 400N

Step-by-step explanation:

Speed=20 m/s

Distance travelled= 8m

So, time= 20/8= 0.4s

acceleration= 20/0.4= 50m/s^2

F=ma

F= 8×50= 400N

Hope it helps. :)