when does kinetic energy go to zero
When the skier is halfway up the hill the kinetic and potential energies are equal. A few hours later when the skier has reached the top of the mountain, their potential energy is at its maximum and their kinetic energy is zero. Kinetic energy is one half times the mass times the velocity squared. Kinetic energy = 1/2mv 2. Potential energy is the mass times gravity times the height.