A planet of mass M moves around the sun along an ellipse so that its minimum distance from the sun is equal to r and the maximum distance to R. Making use of K epler's law, find the its period of revolution around the sun.

A planet of mass M moves around the sun along an ellipse so that its m

1.	A planet of mass M moves around the sun along an ellipse so that its minimum distance from the sun is equal to r and the maximum distance to R. Making use of K epler's law, find the its period of revolution around the sun.
Answer» ANSWER :`SQRT(((r+R)^(3))/(2GM_(s)))`