A cart with a mass of 100kg is at the top of a 10 meter hill. (Remember gravitional potential energy = mgh; g=9.8m/s^2) The gravitional potential energy of the cart at the top of the hill is joules. If there is no friction, the kinetic energy of the cart at the bottom of the hill is joules. Check AnswerThe skaterboarder does not make it back up to the same spot because some ofthe original gravitational potential energy is being converted to energy due to the from the rubbing against the wheels. Check Answer In the toaster, energy is transformed to Check Answer View Hint energy. Some possible answers include: electrical, thermal, mechanical, and nuclear