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Circumference of a Circle

A bob suspend...

Question

A bob suspended by a strings of length $24$ cm is given impulse when the string is vertical such that it starts moving with a speed equal to $\sqrt{6} m / s$ . At a point P at a distance of X cm a pin is placed such that the bob is just able to complete a circular motion about P . Find the value of $x$ (g $= 10 m / s^{2})$

A

4 c m

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B

8 c m

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C

16 c m

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D

12 c m

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Solution

The correct option is D $12 c m$

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