Angular Velocity of the earth

  • Thread starter temaire
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Homework Statement
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The attempt at a solution
I think the answer is (b) because an increase in mass would cause an increase in inertia of Earth. This would decrease the velocity of Earth, and since velocity is proportional to angular velocity, both would decrease. Am I right?
 

Answers and Replies

  • #2
ehild
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The Earth stays on the same orbit. Think of Kepler's third law about the relation between distance from Sun and orbital period.

ehild
 

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