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14 Mar 2010 07:24:43 IST

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find out the expression for time period for a simple pendulam?

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find out the expression for time period for a simple pendulam?

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Krishna Gopal Singh

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Joined: 29 Dec 2006

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14 Mar 2010 10:21:04 IST

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For small displacement @ of pendulum of mass m and length ,lthe restoting torque acting on bob about point of suspension istorque = -mgsin(@) = - mgl(@) if @ is small.So restoring constant k = mglMoment of inertia (I) of bob about point of suspension = ml^2Timeperiod of pendulumT = 2*pi*sqrt(I/k) = 2*pi*sqrt(ml^2/mgl)= 2*pi*sqrt(l/g)

GamE

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Joined: 9 Aug 2009

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14 Mar 2010 11:26:09 IST

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T= 2pi. root(l/g)

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