A stick of uniform density with mass M = 7.5 kg and length L = 1 m is pivoted about an axle which is perpendicular to its length and located 0.12 m from one end. Ignore any friction between the stick and the axle.(adsbygoogle = window.adsbygoogle || []).push({});

a) What is the moment of inertia of the stick about this axle?

Iaxle = kg m2

A: 1.708 OK

The stick is held horizontal and then released.

b) What is its angular speed as it passes through the vertical

w = rad/s

A: 5.7217 OK

This is where I'm having problems, I'm not exactly sure how to do these last two.

c) What is its angular acceleration as it passes through the vertical position?

a = rad/s2

d) What is the magnitude of the vertical component of the force exerted by the stick on the axle when the stick passes through the vertical?

|Fvertical| = N

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# Homework Help: Pivoting Stick

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