question_answer

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 is

A) \[\frac{PM}{M+m}\]

B) \[\frac{Pm}{M+m}\]

C) \[\frac{Pm}{M-m}\]

D) P