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What is the final velocity of a hoop that rolls without slipping down a 5.00-m-high hill, starting from rest?

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PE=KE=KE(transl) + KE(rot)
I= mR²
mgh = mv²/2 + I ω²/2=
= mv²/2 + mR²v²/2R²=
= mv²/2+ mv²/2 = mv²
v=sqrt(gh)= …

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