As the huge box starts from rest at the top of the ramp, it has maximum potential energy (PE) due to its height. As it slides down, PE transforms into kinetic energy (KE) because the box gains speed while losing height. At the bottom of the ramp, PE is at its minimum, and KE is at its maximum since the box has reached its highest velocity.Energy Conservation:The total mechanical energy (PE + KE) remains constant, assuming no friction. This means the initial PE at the top is fully converted into KE at the bottom, demonstrating the law of conservation of energy.