1. The problem statement, all variables and given/known data i need to find the work of gravitational attraction based on heights of balls being shot into the air. the mass of the ball is 24 grams, the height is 27cm at 0 degrees, 38 at 30 degrees, 50 at 45 degrees, 61 at 60 degrees, 80 at 90 degrees. i also need to find the initial velocity of a ball going up at a 90 degree angle. 2. Relevant equations 3. The attempt at a solution i have absolutely no idea how to do this i don't need the answers but i do need to learn how to do this.