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A bob of heavy mass m is suspended by a light string

of length l. The bob is given a horizontal velocity v0

as shown in figure. If the string gets slack at some

point P making an angle θ from the horizontal, the

ratio of the speed v of the bob at point P to its initial

speed v0 is:

image.png

A

image.png

B

image.png

C

image.png

D

image.png

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