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A man is standing on a plank which is pl...

A man is standing on a plank which is placed on smooth horizontal surface. There is sufficient friction between the feet of man and plank. Now man starts running over plank, correct statement is /are

A

Work done by friction on man with respect to ground is negative

B

Work done by friction on man with respect to ground is positive

C

Work done by friction on plank with respect to ground is positive

D

Work done by friction on man with respect to plank is zero.

Text Solution

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The correct Answer is:
B, C, D
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