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A simple pendulum bob is given a horizontal velocity $\large \sqrt{\frac72gl}$ at the bottom. The string slackens after swinging through an angle θ with the vertical. The θ is

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Correct option is D

At B, tension is zero. Conserving energy

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A simple pendulum bob is given a horizontal velocity at the bottom. The string slackens after swinging through an angle θ with the vertical. The θ is

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Ready to Test Your Skills?

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A simple pendulum bob is given a horizontal velocity $\large \sqrt{\frac72gl}$ at the bottom. The string slackens after swinging through an angle θ with the vertical. The θ is