Posted by **Bruce** on Friday, July 13, 2012 at 2:36pm.

The motion of a block-spring system is described by x(t) = A sin(ùt). Find ù, if the potential energy equals the kinetic energy at t = 6.11 s.

I'm really not sure how to solve this. It seems that you need more information, either x or A? I appreciate any help, thank you!

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