Physics, asked by shaziyaiffathprinces, 11 months ago

A ball of mass 1kg dropped from 9.8 m height, strikes the ground and rebounds to a height of 4.9m. If the time of contact b/w ball and ground is 0.1s, then find impulse and average force acting on ball!?
Ans:23.89Ns
239.9N

Answers

Answered by heroboy53
0

Answer:

Friction is caused by the irregularities on the two surfaces in contact. Even those surfaces which appear very smooth have a large number of minute irregularities on them. ... So the force of friction is greater if a roughsurface is involved.

Answered by Anonymous
4

Answer:

Friction is caused by the irregularities on the two surfaces in contact. Even those surfaces which appear very smooth have a large number of minute irregularities on them. ... So the force of friction is greater if a roughsurface is involved.

hope it helps :)

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