[RESOLVED] Speed in relation to angles 1. The problem statement, all variables and given/known data You leave a ball roll down 3 different inclined plans with the same height. They each have 30, 45 & 60 degrees of incline respectively. Compare the sped of each of these plans Height = constant, doesn't change Angles of plans = 30, 45, 60 2. Relevant equations None that I know of. 3. The attempt at a solution I honestly do not see a way how to resolve this problem, if anyone can just shed any light, I know we're working in energy at the moment but I cannot find a way to get information with just an angle.