Asked by jb

A 58.2 g object is attached to a horizontal spring with a spring constant of 11.8 N/m and released from rest with an amplitude of 24.4 cm.
What is the velocity of the object when it is halfway to the equilibrium position if the surface is frictionless?
Answered by Damon
U = potential energy of spring = (1/2) k x^2

calculate U for x = .244 meter

calculate U for x = .122 meter

decrease in U = (1/2) m v^2
Answered by carlos
4+3
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