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A 0.5 kg ball moving with a speed of 12 ...

A `0.5 kg` ball moving with a speed of `12 m//s` strikes a hard wall at an angle of `30^(@)` with the wall. It is reflected with the same speed and at the same angle . If the ball is in contact with the wall for `0.25 s`, the average force acting on the wall is

A

48 N

B

24 N

C

12 N

D

96 N

Text Solution

Verified by Experts

The correct Answer is:
B
F=`(Deltap)/(Deltat)=(2mvsin30^(@))/(0.25)=24N`
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