The fastest possible rate of rotation of a planet is that for which the gravitational…
PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
The fastest possible rate of rotation of a planet is that for which the gravitational force on material at the equator just barely provides the centripetal force needed for rotation. The corresponding shortest period of rotation is T=qGρDπ (where ρ is the uniform density of the planet and p and q are integers in lowest forms). The value of (p+q) is _____.