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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?

so I'm stuck...

i think it might be zero but .5 kx^2 would not give zero now would it...

3 answers

thanks

wait how do i find out the spring constant?

Stuck