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March 1, 2015

March 1, 2015

Posted by **joy** on Thursday, August 19, 2010 at 9:06am.

- physics -
**drwls**, Thursday, August 19, 2010 at 9:35amFor (a), assume all of the stored sproing potential energy is coinverted to kinetic energy.

(1/2)kX^2 = (1/2)mV^2

V = sqrt(k/m)* X

where X (=0.22 m) is the amount of spring compression and k is the spring constant, 400 N/m.

For (b), assume all of the initial stored potential energy is converted to gravitational potential energy.

(1/2)kX^2 = m g x' sin 37.

Solve for the distance x' that it slides.

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