AP Physics B: Centripetal Force and Gravity

AI Thread Summary
The discussion revolves around calculating the mass of two stars in orbit, where the mass relationship is given as 2m1=5m2, and their orbital period is 120Ms with a distance of 1400Gm between them. The gravitational force equation F=GmM/r² is highlighted as essential for solving the problem. Participants express confusion regarding the concept of reduced mass and its application in two-body problems. The need for clarification on Kepler's Laws and their relevance to the scenario is also mentioned. Overall, the thread emphasizes the complexities of orbital mechanics and the need for a deeper understanding of the underlying physics principles.
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Homework Statement


Two stars of mass m1 and m2 are in orbit around their center of mass. If 2m1=5m2, and their orbital period is 120Ms, calculate the mass of the larger star, given that the distance between their centers is 1400Gm.


Homework Equations


F=GmM/r2


The Attempt at a Solution


I don't even know what to put as mass of the centripod, i kneed serious help
 
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What have you learned about two-body problems? Reduced mass? Kepler's Laws?
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