1. The problem statement, all variables and given/known data Tom decided to attempt to jump a 200m wide river on rocket skates. He built a 60m long ramp with an angle of 30° to the horizontal and plans to land on a mattress at ground level. Determine the launch speed necessary for Tom to be successful. 2. Relevant equations I read up on this: vo = √Rg/Sin(2 * θ) 3. The attempt at a solution vo = √200 * g/Sin(2 * 30) vo = √200*g/0.866 Not a homework question, but I stumbled upon this and want to learn this stuff.