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A block of mass M is pulled along a hori...

A block of mass M is pulled along a horizontal frictionless surface by a rope of mass `m`. If a force P is applied at the free end of the rope, the force exerted by the rope on the block

A

`(Pm)/((M+m))`

B

`(Pm)/((M-m))`

C

P

D

`(PM)/((M+m))`.

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