question_answer 18)

How much momentum will a dump-bell of mass 10 kg transfer to the floor if it falls from a height of 80 cm? Take its downward acceleration to be 10 m s-1.

Answer:

Here, m = 10 kg, s = 80 cm = 0.8 m, a = 10 m s-2 or Momentum transferred, p = mu = 10 x 4 = 40 kg m s-1