1. The problem statement, all variables and given/known data A ball falls from rest from an initial height of 5m above the ground. At what height above ground level will the ball be moving at 5.2 m/s? 2. Relevant equations gravitational energy = mgh kenetic energy=(1/2)mv^2 3. The attempt at a solution I tried solving for both types of energy but I do not have mass so I am not sure how to solve. Please help!