Determine the gravitational pull between the earth and a man with a mass of 70kg , if he is in an aeroplane 10000m above the surface of the earth
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Weight is mass times gravity (W = m x g). On Earth, a 70 kg person will weigh 70 kg times 9.8 m/s^2 = 686 kgm/s^2, or 686 Newtons. On the Moon, a 70 kg person will weigh 70 times 1.6 m/s^2 = 112 kgm/s^2, or 112 Newtons. How far away would the Moon have to get to completely escape Earth's gravitational pull?
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