(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A student sits on a freely rotating stool holding 2 3.00kg dumbbells. When the students arms are extended horizontally the dumbbells are 1.00m from the axis of rotation and the student rotates with an angular speed of 0.750 rad/sec. The moment of inertia of the student and the stool is 3.00 kgm^{2}and it is assumed to be constant. The student pulls the dumbbells in to a position 0.300m from the rotation axis. What is the new angular speed?

2. Relevant equations

I was going to try I_{i}[tex]\omega[/tex]_{i}=I_{f}[tex]\omega[/tex]_{f}but the problem with this is that the problem says I is constant at 3.00 kgm^{2}. I assume that I need to factor in the radius somehow but I'm not sure how to do it.

3. The attempt at a solution

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# Conservation of Angular Momentum: angular speed

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