1. A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25 m/s at the bottom of the grade, what is the distance traveled before it comes to a rest? 2. mostly my class so far has dealt with equations calculating work and force by drawinf free body diagrams and using the trig functions. 3. I'm having a hard time solving this as i'm missing any sort of mass value, which would seem necessary. i though of using the equation for change in kinetic energy, but can't think of how to rearrange it in a helpful way. The solution in the back of the textbook is 64m, but i can't honestly think of a way to get there.