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Find out the elongation in block. If mas...


Find out the elongation in block. If mass area of cross-section and young modulus of block are m, A and y respectively.

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Acceleration `a=(F)/(m)` then T=m'a where `implies=(m)/(l)x,T=(m)/(l)xx(F)/(m)=(Fx)/(l)`
Elongation in element `dx=(Tdx)/(Ay)` total elongation `delta=int_(@)^(l)(Tdx)/(Ay)=int_(@)^(l)(Fxdx)/(Aly)=(Fl)/(2Ay)`
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