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 
and the bob just completes the vertical circle. The value of v is________ms -1 . (if g = 10 m/s 2 )
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(10)
Considering Only Horizontal direction
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