A mass of 25 kg weighs 123 Newtons on another planet. What is the gravity on the planet?
Md Ariful Islam
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Dr. Md Rushad Rahman
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The "gravity" on the surface of a planet is it's acceleration (the rate of increase in speed as an object falls). Fg (the force of gravity) is m x g (acceleration of gravity), in m/(s squared), so g is Fg / m = 123 N / 25 kg ~= 4.92 m/(s squared).
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