Question

a drum bell of mass 10 kg falls on the floor from a height 80 cm calculate the change in momentum of the drum bell and also the force of impact on the floor (given g=10m/s)

Answer 1

80 cm = 0.8 m

v2 = u2 + 2gs

v2 = 02 + 2 * 10 * 0.8

v2 = 16

v = 4

Velocity = 4 m / s

Momentum = mass * velocity

= 10 Kg * 4 m / s

= 40 kg - m / s

Answer 2

Change in p =2mv where v=\|2gh
Impacts =2mv