I am stuck on the last problem for my homework. It seems to me like the problem doesn't have enough information to complete. I'd really appreciate any tips. A car traveling along a level road as a speed V slams on the brakes and skids to a stop. If the force of friction on the car is half the car’s weight, how far does the car slide? (Hint: Use work-energy theorem and solve for d) OK, so I know the following: W=Fd KE=1/2mv^2 Work=Change in KE To use the work energy theorem, I need to know the KE. The find the KE, I meed to know either the mass of velocity. The problem tells me that the force of friction is 1/2 the car's weight, but that still doesn't give me any numbers to work with. This is where I'm stuck.