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Fields and their consequences (A-level only)

Fields and their consequences (A-level only)

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Question 5

A spherical planet of uniform density ρ \rho\,ρ rotates about its axis. Loose material at the equator is on the verge of losing contact with the surface. What is the period of rotation of the planet?

A

3πGρ\sqrt{\frac{3\pi}{G\rho}}Gρ3π​​

B

34πGρ\sqrt{\frac{3}{4\pi G\rho}}4πGρ3​​

C

2π3Gρ2\pi\sqrt{\frac{3}{G\rho}}2πGρ3​​

D

Gρ3π\sqrt{\frac{G\rho}{3\pi}}3πGρ​​

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Fields and their consequences (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Fields and their consequences (A-level only)

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