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30 Jan 2011 19:31:35 IST

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A pendulum bob of mass m is held in the horizontal position and then released. Show that the velocit

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A pendulum bob of mass m is held in the horizontal position and then released. Show that the velocity of bob at the lowest position is sq.rt. of 2gl and tension in this position is 2mg. l is the length of simple pendulum.

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Juhi Sharma

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Joined: 22 May 2009

Posts: 2467

10 Jun 2012 15:52:46 IST

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Loss in mechanical =Kinetic energy final

root(2*g*l)=V

T-mv^2/l=mg

t=3*m*g

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