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

A uniform spherical shell of mass M = 4.5kg and radius - 8.5 cm can rotate about a vertical axis on frictionless bearings. Rotational inertia formula for this object = 2/3 *m*r^3 A massless cord passes around the equator of the shell, over a pulley of rotational inertia I = 3.0 x 10^-3 kg * m^2 and radius = 5.0 cm, and is attached to a small object of mass m = .6kg. There is no friction on the pulley's axle; the cord does not slip on the pulley. What is the speed of the object when it has fallen 82 cm after being released from rest?

2. Relevant equations

W = delta ke + delta pe

pe(gravitational)

pe(elastic)

work(linear/angular)

ke(angular/linear)

3. The attempt at a solution

I'm not even sure where to start...

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# Homework Help: Energy Conservation(ang+lin)

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