A 0.5 kg ball moving with a speed of 
strikes a hard wall at an angle of 
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
Text Solution
Verified by ExpertsThe correct answer is:
B
The change in momentum is only due to the change in direction of the perpendicular
components.
Hence, 
Its time rate will appear in the form of average force acting on the wall.
Or 
Given, 
Hence, 
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