Physics · Gravitation and Kepler's Laws
There are three planets in circular orbits around a star at distances of a, 9a, and 16a respectively. At time t = t0, the star and the planets are aligned in a straight line. If the period of revolution of the closest planet is T, how long after t0 will they all again be aligned in the same straight line?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13456 T
- 21728 T✓
- 3512 T
- 4216 T
Correct answer
1728 T
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