1. The problem statement, all variables and given/known data A 100 kg bale of hay falls off a truck traveling along a level road at 24.4 m/s. It lands flat on the road and slides 100m before coming to rest. Assume the acceleration is constant, compute the coefficeient of kinetic friction between the road and the hay. 2. Relevant equations F=u x N Sum of the forces horizontally (x) = 2440 N -f = ma (acceleration is a constant) Sum of the forces Vertically (y) = N-W=O 3. The attempt at a solution f= (2440)/(100a) W= -980 so N= -980 now i plugged into f= u x N (2440/100a)= u x -980 u= -.02a Now i know the answer because i can see it in the back of the book, and this doesnt feel right. advice?