Physics

A 3.2 kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of this spring/mass sytem is 2.2 J. What is the elastic potential energy of the system when the 3.2 kg block is replaced by a 5.6 kg block?


PE= 1/2 kx^2 but W= kx or x= Weight/k

PE= 1/2 k (Weight/k)^2 reduce it.

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asked by Mary
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