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What does a rock weigh on the moon if it weighs 20N on earth?
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What does a rock weigh on the moon if it weighs 20N on earth?

User Yaru
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Gravitational acceleration is 9.8 m/s^2 on Earth and 1.6 m/s^2 on the moon. So that rock weighs 3.3N on the moon.
User Dave Mackersie
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