Assuming the string to be inextensible and surface and pulley to be frictionless, velocity of block B(VB) in the given figure is
A
2m/s
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B
6m/s
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C
8m/s
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D
10m/s
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Solution
The correct option is D10m/s For an inextensible string velocity component of the end points along the string will be same. Taking the component of VB along the string.