[qarout]

consider a uniform rope of constant mass density and of total length L held vertically from the top such that the bottom end touches the pan of a spring scale . the rope is released at t=0.Find the reading of the scale as afunction of t

[Obama08]

[align=center]بسم الله الرحمن الرحيم


y(t) = vo*t + 1/2*g*t^2 (vo= 0)
Mass=p(density)*y(t)[lenght of the rope]
reading of the pan = Mass*g = 1/2*g^2*t

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