1. The problem statement, all variables and given/known data A .420kg ball is throw vertically upward at an intial sped o 12.1 m/s. If the initial potential energy is taken as zero find the bal's kinetic, potential, and mecanical energies a.) at its intial position b.) at 1.75m above the initial position, and c.) at its maximum height 2. Relevant equations 3. The attempt at a solution I don't know what formula to use guys :( my brain is hurting from organic chem overload.