ANSWER:
313600 J
Explanation:
We have that the gravitational potential energy is given by the following equation:
We substitute and calculate the potential energy, knowing that g is the acceleration of gravity and is equal to 9.8 m/s^2:
We know that the total energy is 392,000 joules, so the energy it now carries would be the total minus the calculated potential energy:
The energy carried by the cart is 313600 J