A-LevelPhysicsGravitational fieldsMay/June 2021Paper 4 Q16 Marks
An isolated planet is a uniform sphere of radius 3.39 × 10⁶ m. Its mass of 6.42 × 10²³ kg may be considered to be a point mass concentrated at its centre. The planet rotates about its axis with a period of 24.6 hours. For an object resting on the surface of the planet at the equator, calculate, to three significant figures:
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