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F = ma (Final Problems)
Gravitation
FMA-2009-22 · 2009 F = ma (AAPT)

2009 F = ma Exam — Question 22

The following information is used for questions 21 and 22. Two stars orbit their common center of mass as shown in the diagram below. The masses of the two stars are 3M and M. The distance between the stars is d. 22. Determine the period of orbit for the star of mass 3M. q d3
Source: Question 22, 2009 F = ma Exam, © 2009 American Association of Physics Teachers (AAPT) and the U.S. Physics Team. Adapted by PhysicsTrainer: reformatted into a separate question and answer choices for online multiple-choice practice, with answer choices retyped; any shared setup from nearby questions is repeated here. Not affiliated with or endorsed by AAPT or the U.S. Physics Team.