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Questions  

In the arrangement shown, the pulleys and the strings are ideal. The acceleration of block B is

a
g5
b
g2
c
2g5
d
2g3

detailed solution

Correct option is C

For B : mg-T = maFor A : 2T - mg = ma2⇒mg = 52maa = 2g5

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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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