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Velocity of COM

In the system...

Question

In the system shown in figure, wedge is moving towards left with speed 2 m/s. Then, velocity of the block B will be:

\sqrt{3}

m/s

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1 m/s

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2 m/s

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0 m/s

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Solution

The correct option is A 2 m/s
In this question when wedge moves
with the speed of $2 m / s$ then string become
free with the speed of $2 m / s$ . Thus speed of block $B$ is $2 m / s$ .
Correct option is (C).

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