A simple pendulum of bob of mass m and length l has one of its ends fixed at the centre O of a vertical circle, as shown in the figure. If θ=60∘ at the point P, the minimum speed u that should be given to the bob so that it completes a vertical circle is

A simple pendulum of bob of mass m and length l has one of its ends fi

1.	A simple pendulum of bob of mass m and length l has one of its ends fixed at the centre O of a vertical circle, as shown in the figure. If θ=60∘ at the point P, the minimum speed u that should be given to the bob so that it completes a vertical circle is
Answer» A simple pendulum of bob of mass $m$ and length $l$ has one of its ends fixed at the centre $O$ of a vertical circle, as shown in the figure. If $θ = 60^{\circ}$ at the point P, the minimum speed $u$ that should be given to the bob so that it completes a vertical circle is

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A simple pendulum of bob of mass m and length l has one of its ends fixed at the centre O of a vertical circle, as shown in the figure. If θ=60∘ at the point P, the minimum speed u that should be given to the bob so that it completes a vertical circle is

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