A body weights 30kg on surface …
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Yogita Ingle 5 years, 9 months ago
Mass m = 30 kg on Earth
weight = m g = m G M / R²
G = universal gravitational constant
M = mass of Earth
R = Radius of Earth
mass of the body remains same on the surface of other planets.
gravity on a planet = g' = G M' / R' ²
M' = M/9 and R' = R/2
=> g ' = G M/R * 4/9 = 4 g / 9
Weight on the planet = m g' = 4/9 m g = 4/9 * 30 kg = 40/3 kg
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