A body of mass 0.500 kg moving at 6.00 m/s strikes a wall normally and bounces back with a speed of 4.00 m/s. The mass was in contact with the wall for 0.200 s.

Question

Find:
a) the change of momentum of the mass
b) the average force the wall exerted on the mass

Answer 1

delta P = m (V2-V1)

F = d/dt(mV) = m (V2-V1)/t