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System is shown in the figure and man is...


System is shown in the figure and man is pulling the rope from both sides with constant speed `u` find the speed of the block.

A

`(3u)/(4)`

B

`(3u)/(2)`

C

`(u)/(4)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
`u=(0+v_(1))/(2),(v_(1)+v_(2))/(2)=v,(-v_(2)+u)/(2)=v`
Hence `v=` velocity of `M=(3u)/(4)`.
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