Consider a light wire of Young's modulus Y, cross-sectional area A and length L. If a constant force F, is applied at the end of

Question

Consider a light wire of Young's modulus Y, cross-sectional area A and length L. If a constant force F, is applied at the end of the wire as shown then
(A) Elongation in wire will be (F₀L/AY)
(B) Work done by force F₀ will be (F₀²L/AY)
(C) Loss of mechanical energy is 1/2 (F₀²L/AY)
(D) Elongation in wire will be (2F₀L/AY)

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