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7.1.5 Example (N09/I/16) Binary Stars
Two stars of mass M and 2M, at a distance 3x apart, rotate in circles about their common centre of mass O.
The gravitational force acting on the stars can be written as .
What is the value of k?
A 0.22 B 0.50 C 0.67 D 2.0
7.1.5.1 Model: You may view the movement of the two stars using the EJSS below link (require internet) or just below:
Answer is
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Credits
Fu-Kwun Hwang - Dept. of Physics,National Taiwan normal Univ.; Loo Kang Wee; Wolfgang Christian
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- Details
- Parent Category: 02 Newtonian Mechanics
- Category: 08 Gravity
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