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A block of mass M is attached to the low...

A block of mass M is attached to the lower end of a vertical rope of mass m. An upward force P acts on the upper end of the rope. The system is free to move. The force exerted by the rope on the block is `(PM)/(M+m)`

A

in all cases

B

only if the rope is uniform

C

in gravity-free space only

D

only if `P gt (M_m)g`

Text Solution

Verified by Experts

The correct Answer is:
A
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