Question

calculate the impulse necessary to stop a 2000kg car travelling at 72kmph

Answer 1

Answer:

Mass = 2000 kg

Initial velocity (u) = 72 kmph

= 20 m/s

Final velocity (v) = 0 m/s

Impulse = Momentum

= Mass*Velocity

= 2000*20 kg.m/s

= 40000 kg.m/s

I hope this helps.