Questions

In the shown arrangement, the end P of an unstretchable string move downwards with uniform speed u. Mass M moves rightward with a speed of :

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usinθ

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detailed solution

Correct option is C

As magnitude of component of velocity along string is constant sovP=vMcos⁡90∘−θ⇒v=vMsin⁡θvM=usin⁡θ

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