- #1
Matt1234
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Homework Statement
A rope exerts a force of magnitude 21 N, at an angle 31 deg above the horizontal, on a box at rest on a horizontal floor. The coefficients of friction between the box and floor are Us = 0.55 and Uk = 0.50. The box remains at rest. Determine the smallest possible mass of the box.
Homework Equations
U= Ff / Fn
The Attempt at a Solution
I don't know how to go about it yet, Sorry.
So far i drew a FBD which i believe is correct.
Any help with themethod would be appreciated.