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

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

A

10N

B

100N

C

1.0 N

D

0.1 N

Text Solution

Verified by Experts

The correct Answer is:
A
`F = ("Change in momentum")/("Time")`
` = (2 mv cos 60^(@))/(0.1)`
` = ( 2 xx 0.1 xx 10 xx (1)/(2))/(0.1) = 10N`
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