1. The problem statement, all variables and given/known data I'm trying to create a problem for my physics standards that is hard. I gave myself a ball being pushed down a carpeted decline at 24° from the horizontal. The balls starts with an initial velocity of 1 m/s and ends the 6 meter decline at 5 m/s. I want to find the applied force on the ball. 2. Relevant equations Perhaps "1/2vf2 = g*hi"? 3. The attempt at a solution Found a stalemate because I don't want to give the mass, or else the problem is too easy. So, I can't use "Fg = m*ag".