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QAIPMT-2006-Ph-2452: NEET 2006 Physics - Class 12 AIPMT-2006-Ph-2452 Solution: A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall …
A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle of with the wall. It is reflected with the same speed at the same angle. If the ball is in contact with the wall for 0.25 seconds the average force acting on the wall is: 96 N 48 N 24 N 12 N
Multiple Choice Options
- A pE
- B 2 _ pE
- C pE/2
- D 2pE
Step-by-Step Verified Solution
Work done in deflecting a dipole through an angle _ is given by
W = � 0 _ p E sin _ _ d _ = p E ( 1 _ cos _ _ )
Since _ = 90�
_ W = pE(1 � cos90�) _ W = pE