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

I need help with part d.

3. The attempt at a solution

I worked out the damping constant and I am pretty sure it is correct. So I tried to solve this using work energy theorem. I ended up with a quadratic equation and solved for two solutions. None of them match the answer key which is -0.081rad/s. What am I doing wrong? Is the energy term for the damper correct?

Essentially I have:

Spring energy + Gravitational energy = Work done by damper + Rotational kinetic energy of the whole system

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# Homework Help: Work energy problem with damping?

Can you offer guidance or do you also need help?

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