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

A painter of mass M stands on a platfrom of mass m and pulls himself up by two ropes which hang over pulley as shown in fig. 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

Verified by Experts

The correct Answer is:
A
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