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Questions  

Three blocks l, 2 and 3 are arranged as shown in the figure. The velocities of the blocks v1, v2 and v3 are shown in the figure. What is the relationship befween v1, v2 and v3?

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a
2v1+v2 = v3
b
v1+v2 = v3
c
v1+ 2v2 = v3
d
None of these

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detailed solution

Correct option is D


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Two masses of I kg and 5 kg are attached to the ends of a massless string passing over a pulley of negligible weight. The pulley itself is attached to a light spring balance as shown in figure. The masses start moving during this interval; the reading of spring balance will be:


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