An astronaut has a mass of 85 kg. calculate his weight on earth and on the earth’s moon. (gmoon = 1.6 m/s). does his mass change when he goes from earth to its moon?

on earth = 833 N

on moon = 136 N

No

Explanation:

Weight = mass * gravitational acceleration

(Assume gravitational acceleration on earth = 9.8 ms⁻²)

Weight on Earth = 85 * 9.81

                           = 833 N

Weight on moon = 85 * 1.61

                           = 136 N

Weight depends on the gravitational acceleration . But mass is independent from it

Mass doesnt change when we move object to one planet to another planet though Gravitational acceleration is varying planet to planet

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