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A painter of mass M stands on a platform...

A painter of mass M stands on a platform of mass m and pulls himself up by two ropes which hang over pulley as shown. He pulls each rope with force F and moves upward with a uniform acceleration a. Find a, neglecting the fact that no one could do this for long time

A

`(4F-(M+m)g)/(M+m)`

B

`(2F-(M+m)g)/(M+m)`

C

`(F-(M+m)g)/(M+m)`

D

`(4F+(M+m)g)/(M+m)`

Text Solution

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The correct Answer is:
A
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