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September 18, 2014

September 18, 2014

Posted by **Jon** on Tuesday, January 11, 2011 at 6:42pm.

Wouldn't it just be K/U=1/1 or just 1

Because at half the amplitude, it's going to be a combination of K and U. At one extreme all the energy will be kinetic, and at the other extreme all energy will be potential. Therefore halfway between they must equal each other for a 1:1 ratio... right?

- Physics -
**bobpursley**, Tuesday, January 11, 2011 at 7:24pmPE= 1/2 kx^2

KE= 1/2 m v^2

put in the expression for v in terms of x

find each when x=1/2 Amplitude.

You will then find the answer, and it is not your guess above.

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