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 will be

(1) P

(2) $\frac{Pm}{M+m}$

(3) $\frac{PM}{M+m}$

(4) $\frac{Pm}{M-m}$

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Concept Questions :-

Application of laws

(3)

Acceleration of the system $=\frac{P}{m+M}$

The force exerted by rope on the mass $=\frac{MP}{m+M}$

Difficulty Level:

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