Which has the least gravitational potential energy?

Gravitational potential energy is greater when an object is higher above the ground, and it also depends on mass. The 10 kg barbell is resting on the floor, so its gravitational potential energy is at the lowest reference level; the 25 kg barbell is held above the weightlifter’s head and therefore has more. The correct choice is B, the 10 kg barbell resting on the floor.

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