A pendulum of length 2 m consists of a wooden bob of mass 50 g. A bullet of mass 75 g is fired towards the stationary bob with a speed v. The bullet emerges out of the bob with a speed ${v \over 3}$ and the bob just completes the vertical circle. The value of v is ___________ ms$-$1. (if g = 10 m/s2).

Question

A pendulum of length 2 m consists of a wooden bob of mass 50 g. A bullet of mass 75 g is fired towards the stationary bob with a speed v. The bullet emerges out of the bob with a speed ${v \over 3}$ and the bob just completes the vertical circle. The value of v is ___________ ms^$-$1. (if g = 10 m/s²).

Correct Answer

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