1. The problem statement, all variables and given/known data A box is on top of a slope. The slope has NO FRICTION. V0 = 0 m/s, V = 4m/s. MASS IS UNKNOWN What is the height of the slope? 2. Relevant equations Equation for energy (i think) 3. The attempt at a solution I attempted to find the accelleration, but I do not know what the accelleration is for an object running down a slope with no friction. The only force applying to the box is gravity, I think. I am new to Physics. I tried solving it, but to no avail. I know this can be solved without knowing the mass, but I don't know how! Help?