Question

what would be the force required to stop a car of mass 1000 kg and a loaded truck of mass 10,000 kg in 2 seconds each moving with velocity 5 m/s.

Answer 1

mass of car = 1000 kg
velocity = 5m/s

acceleration= v - u/ t
=5-0/2
= 2.5
Force. = m.a
F. =1000×2.5
= 2500

mass of loaded truck = 10,000 kg
velocity = 5m/s

acceleration=2.5

Force. = m.a
F. =10,000 × 2.5
= 25000
ans. force will required to stop the car and the loaded truck will be 2500 and 25000 respectively