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A block of mass Mis susended fom a wire ...

A block of mass Mis susended fom a wire of length L area of cross section A and Young.s modulus Y. Find the elastic potential energy stored in the wire.

Text Solution

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`U=(1)/(2)` stress strain. Volume
`U=(1)/(2)` stress `("stress")/(Y)A.L`
`U=(1)/(2)(Mg)/(A).(Mg)/(AY)A.L=, U=(1)/(2)(M^(2)g^(2)L)/(AY)`
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