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A body of mass 3 kg moving with velocity...

A body of mass 3 kg moving with velocity 10 m/s hits a wall at an angle of `60^(@)` and returns at the same angle. The impact time was 0.2 s. Calculate the force exerted on the wall.

A

`150 sqrt(3) N`

B

`50sqrt(3) N`

C

100 N

D

`75sqrt(3) N`

Text Solution

Verified by Experts

The correct Answer is:
A

Change in momentum `=2 xx 3 xx 10 xx sin60^(@) = 60 xx sqrt(3)/2`
Force = Change in momentum `=(30sqrt(3))/0.2 = 150sqrt(3)` N
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