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In the arrangement shown in fig. the ends P and Q of an inextensible string move downwards with uniform speed u. Pulleys A and B are fixed. The mass M moves upwards with a speed ?

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Profile image of HARIKRISHNAN
8 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
6 Years ago
Let, V be the velocity of mass in upwards direction.
Therefore, component of velocity along the rope = VCosθ
Now, VCosθ=u
Therefore, V= 
Cosθ
u
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