OBF Practice Questions - OBF - Olimpíada Brasileira De Física Exam

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A uniform solid cylinder of mass M and radius R rolls without slipping down an incline of angle θ. What is the linear acceleration of the cylinder's center of mass and the minimum coefficient of static friction μ_s required to prevent slipping?

a = (1/2) g sin θ and μ_s = (1/2) tan θ a = (2/3) g sin θ and μ_s = (1/3) tan θ a = (3/4) g sin θ and μ_s = (1/4) tan θ a = (5/7) g sin θ and μ_s = (2/7) tan θ

Correct Answer:

a = (2/3) g sin θ and μ_s = (1/3) tan θ

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