An object with a mass of $2 k g$ $2 kg$ is on a plane with an incline of $- \frac{π}{3}$ $- pi/3$ . If it takes $12 N$ $12 N$ to start pushing the object down the plane and $3 N$ $3 N$ to keep pushing it, what are the coefficients of static and kinetic friction?

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Answer 1 · 2018-06-22T18:14:48

$u_{s}$ $u_s$ =2.932
$u_{k}$ $u_k$ =2.032

We will get the answers by drawing free body diagrams.
It will give us solvable equations. The solution is attached. This is my original working

An object with a mass of 2kg2 kg is on a plane with an incline of −π3 - pi/3 . If it takes 12N12 N to start pushing the object down the plane and 3N3 N to keep pushing it, what are the coefficients of static and kinetic friction?