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January 30, 2015

January 30, 2015

Posted by **visoth** on Thursday, April 26, 2012 at 1:58am.

- physics(i also hae no idea) -
**Damon**, Thursday, April 26, 2012 at 3:44amKinetic energy at bottom = potential energy at top

- physics(i also hae no idea) -
**Damon**, Thursday, April 26, 2012 at 3:49am(1/2) m v^2 + (1/2)I w^2 = m g h

but w = v/r

(1/2) m v^2 + (1/2)I v^2/r^2 = m g h

v^2 (m + I/r^2) = 2 m g h

You must know something about radius and moment of inertia to get answer.

- physics(i also hae no idea) -
**visoth**, Thursday, April 26, 2012 at 4:40pmomg thank you i forgot about kinetic energy and potential energy

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