Question

Which statement is true?Select one of the options below as your answer:A. Kepler’s laws apply only to the motion of Earth.B. Kepler’s laws can be used to predict eclipses.C. Kepler’s laws are true for a central force that is directly proportional to distance.D. Kepler’s laws can be deduced from Newton’s laws of motion and gravity.

Answer 1

A: Kepler's laws apply to any body of negligible mass compared to the object it's orbiting.
B: Kepler's laws only describe the orbit of a 2-body system. Eclipses require 3 bodies
C: Gravitational forces are proportional to the inverse square of the distance.
D: Kepler's laws can be derived from Newton's laws of motion and gravity.