1. The problem statement, all variables and given/known data A bowling ball of mass 2.2kg is rolling along a track at 3.2m/s when it reaches a ramp angled at 55°, The ball rolls up the ramp to the top where the track levels out again, and the ball rolls at 0.3 m/s. How long is the ramp? mass = 2.2kg v1 = 3.2 m/s v2 = 0.3 m/s angle of the ramp = 55° Not sure about the friction so I'm going to assume it's frictionless. 2. Relevant equations Fnet = ma Not sure 3. The attempt at a solution Well from what we know I was able to find the acceleration going down the ramp was -8.2 m/s^2. I found this out because the only force acting on the ball while the ball was going up the ramp was the force fog ravity and I used the following equation. Fnet = ma Fx = ma -18 = 2.2a a = -8.2 This is assming there is no friction and choosing up the ramp to be positive. I know I don't have much done but I'm lost as to what to do now. I was wondering if I could use the equation: v2^2 = v1^2 + 2ad I don't know if that would work since that would give us the displacement from the very beginning to the very end and not only the length of the ramp.