AP Physics 1
2.6 Gravitational Force
2.5 Newton’s Second Law
2.2 Forces and Free-Body Diagrams
The magnitude of the gravitational field on the surface of a new planet is \(20\,\text{N/kg}\). The planet's mass is half the mass of Earth. The radius of Earth is \(6400\,\text{km}\). What is the radius of the new planet?
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