I having trouble answering this one. I already had to calculate the change in potential energy but am now stuck.(adsbygoogle = window.adsbygoogle || []).push({});

A stick with a mass of 0.168 and a length of 1.00 is pivoted about one end so it can rotate without friction about a horizontal axis. The meter stick is held in a horizontal position and released.

1) As it swings through the vertical, calculate the angular speed of the stick.

I thought I could answer this by using the equation:

(ω_f)^2 = (ω_i)^2 + 2α Δθ

This does not work and I don't know where to go from here.

2) As it swings through the vertical, calculate the linear speed of the end of the stick opposite the axis.

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# Angular Speed of a swinging stick

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