the ends P and Q of a unstretchable string move downwards with uniform speed U . Pulleys A and B are fixed. Mass M moves upwards with a speed
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In the arrangement shown in the figure, the ends P and Q of a unstretchable string move downwards with uniform speed U . Pulleys A and B are fixed. Mass M moves upwards with a speed In the arrangement shown in the figure the ends P and Q of a unstretchable string move downwards with [...]