- #1
berrytea
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Homework Statement
A 15 kg block is attached to a very light horizontal spring of force constant 5000.0 N/m and is resting on a frictionless table. It is struck by a 3.00 kg stone at 8.00 m/s to the right, then rebounds at 2.00 m/s to the left.
Homework Equations
ΔE = ΔK + ΔU
The Attempt at a Solution
I have been stuck on this part of this problem for a while now, and I'm not sure which formula to use, or if I am plugging in the wrong numbers.