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In the figure a smooth pulley of negligi...

In the figure a smooth pulley of negligible weight is suspended by a spring balance. Weights of 1kg and 5 kg are attached to the opposite ends of a string passing over the pulley and move with acceleration because of gravity. During the motion, the spring balance reads a weight of `:`

A

6 kg

B

less than 6 kg

C

more than 6 kg

D

may be more or less than 6 kg

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