 #1
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Homework Statement
The cylinder in the drawing weighs 100[N]. there is a horizontal rope at the top that prevents it from rolling. what is the coefficient of friction if it's on the verge of movement
Homework Equations
Friction force: f=μN
The Attempt at a Solution
The whole weight of the cylinder lies on the contact point. the coefficient of friction is the tangent of the slope, which is here 25^{0}, thus μ=tan 25^{0}=0.422
It should be 0.22
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