A 32.0 kg wheel, essentially a thin hoop with radius 1.20 m is rotating at 280 rev/min. It must be brought to a stop in 15.0s(adsbygoogle = window.adsbygoogle || []).push({});

What ist the required average power to do this?

I know that P=τω

To find τ I used the equation τ=Fd where F=ma I figured I would find a by using the equation ωf= ωi + αt

First off is this the right approach? I'm also confused as to what d is. My book doesn't really explain it that well, would d be = 1.20m?

Thanks for any help

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# Homework Help: Rotational power

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