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Mechanics

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 Joined: 7 Oct 2010 Post: 29
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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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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