Recent content by Omnomnomnom

the problem up above is all that I have, oh well my teacher has given us impossible problems before maybe this is another >.<

I have to find the coefficient of friction between the bookcase and the ground, this is all that I was given, there is no angle. I am assuming that this is a flat surface.

Homework Statement what is the coefficient of friction between a 41N bookcase and the groud, when the bookcase accelerates at .25m/s2? Homework Equations F=ma Forcefriction=μ*force normal The Attempt at a Solution a=.25 m=41 μ=? I have absolutly no idea what i am doing