If it takes 10 energy units to move a 10kg weight 10 meters, does the energy expended go up as the time used decreases?
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Energy is Force * Distance. In this case the distance stays the same, so we must ask ourselves if the Force changes.
Well, since we know the time decreases, then we know the object moved faster. If it moved faster then it must have had more force applied to it. And since distance is the same, we know that more force means more energy used.
That said, this assumes a constant force being applied. It gets more complicated if that isn’t the case.
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