Newton’s law of universal gravitation states that two bodies in space pull on each other with a force proportional to their masses and the distance between them. For large objects orbiting one another—the moon and Earth, for example—this means that they actually exert noticeable force on one another.
Keeping this in consideration, is Newton’s theory of gravity correct?
Extra spatial dimensions–beyond the three we know–could alter Newton’s inverse-square law of gravity at short distances. But new measurements show that Newton is correct down to at least 200 micrometers. You might think that Newton’s law of gravity is about as solid as any principle in physics.
Simply so, why is Newton’s law of gravitation important?
Newton’s Law of Universal gravitation is one of the most important and fundamental laws in classical physics as it explains the movement of objects as a result of an “invisible force”.