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I can test a new wheel design by rolling it down a test ramp. I release...

I can test a new wheel design by rolling it down a test ramp. I release a wheel of mass m=1.1 kg and radius r=0.30 m from rest at an initial height of h=9.7 m at the top of a test ramp. It smoothly rolls to the bottom without sliding. I measure the linear speed of the wheel at the bottom of the test ramp to be v=3.4 m/s. What is the rotational inertia of my wheel?

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