Planet A and planet B are in circular orbits around a distant star. Planet A is...
Planet A and planet B are in circular orbits around a distant star. Planet A is 6.0 times farther from the star than is planet B. Part A What is the ratio of their speeds vA/vB?
Homework Answers
Concept - The centripetal force for that revolution of planets around the star is provided by the gravitational force from the star on the planets. Use this to find the relation between speed and distance of planets from the star and hence find the ratio required as shown below.
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