What was the basis for Isaac Newton's conclusion that a force from the Earth must be acting on the Moon?
A)A force is needed to keep the Moon in motion in its orbit.
B)A force is needed to pull the Moon outward.
C)A force is needed to accelerate the Moon toward the Earth, away from straight-line motion.
D)The Moon moved at a constant velocity in a straight line.

Question

Quizplus · Accepted Answer

Newton concluded that a force must be acting on the Moon because it continuously accelerates towards the Earth, deviating from a straight-line path, which is consistent with the concept of gravitational attraction.

What Was the Basis for Isaac Newton's Conclusion That a Force