I understand what to do for single step problems, but I get lost when it comes to multi-stepped. Help, please! 1. A 2000 kg car traveling at 20 m/s slides to a stop over a distance of 200 m on a snowy level road. What is this coefficient of friction between car's tires and the road? 2. A 3000 kg car accelerates along a level road at a rate of 1.5 m/s when 5500 N of force is applied. What is its coefficient of friction? Honestly, I am completely lost, and I do need help. So please, can you help me?