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Question

A system is shown in the figure. A man a standing on the block is pulling the rope. Velocity of the point of string in contact with the hand of the man is 2m/s downwards. The velocity of the block will be: [Assume that the block does not rotate]
293062_28290275f9124f45ae86f8d455921940.png

A
3m/s
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B
2m/s
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C
12m/s
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D
1m/s
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Solution

The correct option is B 2m/s
A system is shown in the figure. A man a standing on the block is pulling the rope. Velocity of the point of string in contact with the hand of the man is 2m/s downwards. As the single rope is attached to the block from between the pulley and man's hand hence speed of block will be 2m/s upwards
856929_293062_ans_2dd4756049994367b78c4ba27d3a161b.PNG

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