An Object slides with a consistent velocity down an incline that has a 30 degree angle. I'm trying to find the kinetic friction and the ratio that the mechanical energy is lost on the way down. I think I have already calculated µ with F(friction)= µmgcos(θ)=mgsin(θ) out comes Tan(θ) = µ I think I did that correctly.. I'm struggling with the other part about the rate that the mechanical energy is lost. I would guess that it is not possible to get the answer in a number. 3. I tried to us PE = mgh -friction = k2. mgh - µmghcos(θ) = ½mv^2þ not sure what my answer might look like in the end.