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April 20, 2014

April 20, 2014

Posted by **Shawna** on Sunday, January 10, 2010 at 5:51pm.

- Physics -
**Marth**, Sunday, January 10, 2010 at 6:23pmThe kinetic energy when it reaches its final height must be 0. By conservation of energy, the energy it has at its final height is equal to the energy when it is launched.

- Physics -
**Shawna**, Sunday, January 10, 2010 at 6:39pmGot it & Thanks! I was just messing up the (-) signs the whole time. Thanks.

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