i am stuck on part c
how do i find work with out using the spring constant
work equals force parallel times displacement at which the force is acted during...
Work done by spring = .5 kx^2
Work = delta K
but delta K = 0 because the table top is frictionless
Work = delta U
delta U = 0 in this situation correct?
The Attempt at a Solution
so I'm stuck...
i think it might be zero but .5 kx^2 would not give zero now would it...
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