Gravitation
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Question : 3
Total: 25
Suppose there existed a planet that went around the sun twice as fast as the earth. What would be its orbital size as compared to that of the earth?
Solution:
Using kepler’s third law,
We have,r P = r E (
) 2 ∕ 3
∵ T E = 1 T P =
=
r E = 1 A U
∴ r P = 0.63 A U
We have,
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