please explain the question as well as answer
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may be this helps you
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shraddha6797:
thanks sahil
actually in general w=YAx^2/2L here x is one
oh
oh nai ohhhhhhh
ohhhhhhhh ok
after from what is there in answer
here answer is YA/2L
ohhhhh
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Let a wire of length L and cross-sectional area A is made of material of Young's modulus Y.
Work done = 12× stress × strain × volume
=12×Y×(strain)2×Volume
=12×Y×(xL)2×AL
=Yx2A2L
thanks
it should be ya /2l
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