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Standing Waves in Closed Organ Pipe

In the pulley...

Question

In the pulley system shown in figure, at an instant if block A is going down at 5 m/s, block B moves with 5x m/s. Then x is : ( In step pulley, the ratio of radii is 1 : 2)

A

8

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B

6

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C

5

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D

9

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Solution

The correct option is A 8
If we analyse each system separately,
Figure shows velocities in each of the string,
Thus comparing the values we get
$V_{A} = 8 \times V_{B}$

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