Star X of mass 2M and star Y of mass M perform
circular motion about their common centre of mass
under their gravitational attraction.
Ignoring the effects of any other bodies, what is the ratio between Fx and Fy
a 1
b 2
c 4
d 1/2
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Answer:
The centre of mass of the system divides the distance between the stars in the inverse ratio of their masses. If d
1
and d
2
are the distance force for their circular motion
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