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

a solid metal ball of mass M and radius R is rolling without slipping down and incline. A static friction force of magnitude f is acting on the ball. What is the magnitude of the torque due to static friction?

a.) zero b.) rfcos theta c.) rfsin theta d.)Rf e. MRF

2. Relevant equations

ki+ui=kf=uf (conservation of energy)

3. The attempt at a solution

since the ball is rolling without slipping, why is there friction involved? do we just simply ignore friction, so the answer will just be the definition of torque: rfsin theta ?

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# Homework Help: Rolling without slipping

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