b. can be used to derive Kepler’s third law of planetary motion.
Newton’s law of universal gravitation can be used to derive Kepler’s third law of planetary motion.
Kepler's three laws of planetary motion states that;
Newton's law of universal gravitation states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Newton’s law of universal gravitation can be used to derive Kepler’s third law of planetary motion.