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3 January, 07:29

Explain why a person of mass m has a weight equal to mg

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  1. 3 January, 11:12
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    The force of gravity is called weight and equals mg, where g is the acceleration due to gravity of the planet (g = 9.8 m/s2, downward, on Earth). Your mass does not change when you move to other planets, because mass is a measure of how much matter your body contains, and not how much gravitational force you feel.
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