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Gravity is expressed by the formula g = m/r2, where g is the surface gravity of an object, expressed as a multiple of the Earth's, m is its mass, expressed as a multiple of the Earth's mass (5.976·1024 kg) and r its radius, expressed as a multiple of the Earth's (mean) radius (6371 km). So for an example, Mars has a mass of 6.4185·1023 kg 0.107 Earth masses and a mean radius of 3390 km 0.532 Earth radii. The surface gravity of Mars is therefore approximately 0.107/0.532sq is about 0.38 (0.37805981118209056475775905930239) .378 x 100 lb gives 37.8lb Allow for precision in the values and the answer is anywhere between 37.6 and 37.8lbs.

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15y ago

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What happens to your weight when you go to a different planet?

Your weight changes. Relatively your weight increase on planets bigger than Earth and your weight usually decreases on planets smaller than Earth.


Why do people have different weight on different planets or on the moon?

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Why is weight different on different planets and the moon?

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Does gravity affect your weight on different planets?

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What happens if a person is dehydrated?

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Why can an object have the same mass on different planets but its weight could be different?

Mass takes up space, so it will take up the same amount no matter where you are. Weight is dependent on the force of gravity pushing you to the ground. With different forces of gravity on each planet your weight will differ.


What force makes your weight change on planets?

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How do you calculate weight on other planets?

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