Question:
Both earth and moon are subject to the gravitational force of the sun. as observed from the sun, the orbit of the moon
(a) will be elliptical
(b) will not be strictly elliptical because the total gravitational force on it is not central
(c) is not elliptical but will necessarily be a closed curve
(d) deviates considerably from being elliptical due to the influence of planets other than earth
Solution:
The correct answer is (b) will not be strictly elliptical because the total gravitational force on it is not central
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