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A 100g iron ball having velocity 10m//s ...

A `100g` iron ball having velocity `10m//s` collies with a wall at an angle `30^(@)` and rebounds with the same angle. If the period of contact between the ball and wall is `0.1` second, then the force experinced by the wall is

A

100 N

B

10 N

C

0.1 N

D

1.0 N

Text Solution

Verified by Experts

The correct Answer is:
B
F= Rate of change in momentum
`=(2mv sin theta)/(t)`
`=(2 xx 10^(-1) xx 10 sin 30^(@))/(0.1)`
`therefore F= 10 N`
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