1.

How much momentum will a dub bell of mass 10 kg transfer to the floor if it falls from a height of 80cm? Take its downward accerlation to be 10 metre per second.​

Answer»

Answer:

40 kg m/s

Explanation:

The momentum transferred will be equal to the momentum of the dum bell RIGHT before touching the GROUND.

H = 80 cm = 0.8 m

a = 10 m/s²

u = 0 m/s

v² = u² +2 AH

   = 0² + (2 x 0.8 x 10)

   = 0 + 16

v  = √16

v  = 4 m/s

m = 10 kg

P = m v

  = 10 x 4 kg m/s

  =40 kg m/s



Discussion

No Comment Found

Related InterviewSolutions