1. The problem statement, all variables and given/known data "A person kicks a soccer ball at an angle 30° above the horizontal on the ground. The ball then hits a wall at an angle 15° below the horizontal 4.9 seconds later. Determine the height at which the ball hit the wall." (Assume acceleration due to gravity is 9.80m/s2 [Down].) 2. Relevant equations Not entirely sure where to start, but perhaps cos A1 = vx / vi and sin A1 = viy / vi as well as cos A2 = vx / vf and sin A2 = vfy / vf. 3. The attempt at a solution Use the above equations to find vx (?) by subbing them into one of the five kinematic equations. Then find viy and vfy using ratios. Lastly, use viy and vfy to determine the displacement at the max height and the displacement downwards from the max height to the wall. Find the difference of the two values to determine the answer to the question. I feel like I might not be seeing something here. Anyone care to provide some sort of solution? Thanks.