- #1

toesockshoe

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## Homework Statement

A rod of length L and mass M is balanced in a vertical position at rest. The rod tips over and rotates to the ground with its bottom attachment to the ground never slipping. Find the velocity of the center of mass of the stick just before it hits the ground and also find the velocity of the tip just before it hits.

Can someone check my work to see if I am correct?

## Homework Equations

W=Delta E

## The Attempt at a Solution

[itex] W=\Delta E [/itex]

[itex] 0 = \Delta RKE + \Delta GPE [/itex]

[itex] mg\frac{L}{2} = \frac{1}{2}Iw_f^2 [/itex]

[itex] mg\frac{L}{2} = \frac{1}{2} \frac{1}{3}mL^2w_f^2 [/itex]

[itex] w_f = \sqrt{\frac{3g}{L}} [/itex][/B]