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In the figure the pulley P moves to the ...


In the figure the pulley `P` moves to the right with a constant speed `u`. The downward speed of A is `v_(A)` and the speed of B to the right `V_(B)`.

A

`V_(B)=V_(A)`

B

`V_(B)=u+V_(A)`

C

`V_(B)+u=V_(A)`

D

the two blocks have acceleration of the same magnitude.

Text Solution

Verified by Experts

The correct Answer is:
B, D

By string constrain
`v_(A)+u-V_(B)=0`
or `v_(B)=u+a_(B)`
differentiating both side
`a_(B)=0+a_(A)`
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