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Abody of mass m is suspended from a massless spring of natural length I. It stretches the spring through a vertical distance y. The potential energy of the stretched spring is?
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Abody of mass m is suspended from a massless spring of natural length ...
Spring force is given as:
F = -kx
Work done = F x displacement => Fdx
dW = -kxdx
integerating both sides,
W = -kx^2/2 {integerating from (h  + L) to L.
W = -k/2[(h+L)^2 – L^2]
    = -k/2[h^2 *(h+2L)] Joule.
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Abody of mass m is suspended from a massless spring of natural length I. It stretches the spring through a vertical distance y. The potential energy of the stretched spring is?
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