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a 50kg man travels to the moon. when he climbes the 5m ladder up to his lunar base he gains 400J of gravitational potential energy. what is the gravitational field strength on the moon?

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Answer: Gravitational field strength g = 1,6 m/s²2

Explanation: Potential energy Ep = mgh. Solving g = Ep / mh

g = 400 J / (5 m · 50 kg) = 1,6 m/s²

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