1. The problem statement, all variables and given/known data I attached the problem to this post. I need help on the second question and I need to turn it in tomorrow. I'm not sure if I'm supposed to use anything from the first as they are both related. 2. Relevant equations U + KE rvsinθ = rvsinθ These are all the equations I can think of that apply to this problem. 3. The attempt at a solution I found the relationship between velocity c and the angle by using (1880km)*(200m/s)sin(90°) = (1740km)*(v)sin(θ) I initially thought this was correct and went on to substitute values into the energy conservation formula. The conservation of energy formula was not working and I realized that the answers given did not fit my original relationship between the angle and velocity C. I'm totally lost right now and have no clue what I'm doing. I read the corresponding chapter to these problems in my book, but I'm still lost. I feel like what the book teaches is fairly easy to grasp but the problems that are given to solve are so difficult. Please help!