Hi, I am having touble figuring this question out:A 10.0 kg box is lifted 15m above the ground by a construction crane(a) How much work did the crane do on the box? (b) How much potential energy does the box have relative to the ground? If anyone can help, I would appreciate it.
a) recall that work is force distanceThe force needed to lift he box is its weight, 10.0 x gThe distance that force is applied through is the heightb) potential energy is mgh, and notice, it looks a whole lot like part a).
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