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A block of mass

Question:

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

  1. $\frac{\mathrm{Pm}}{\mathrm{M}+\mathrm{m}}$

  2. $\frac{\mathrm{Pm}}{\mathrm{M}-\mathrm{m}}$

  3. $\mathrm{P}$

  4. $\frac{\mathrm{PM}}{\mathrm{M}+\mathrm{m}}$


Correct Option: , 4

Solution:

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