1. A 50 g ball is released from rest 1.0 m above the bottom of the track. It rolls down a straight 30 degree segment, then back up a parabolic segment whose shape is given by y = 1/4x^2, where x and y are in m. There is a picture shown too, but I can't figure out how to get it in the post. I figure that enough information is given to understand the problem. 2. KE = 1/2 mv^2 PE = mgy KEf + Ugf = Ki + Ugi 3. I really don't know what I'm doing, but we know that: m=.50 kg yi = 1 xf = 1 / (tan30) = 1.73 I think the question is asking me to find the final y which I could find from the equation of the parabola, but then I need x. I'm just really lost.