Question

How did Isaac Newton discover the first law of motion

Answer 1

Newton discovered the law of inertia by studying the results of Galileo Galilei. Galileo had noticed that smoother surfaces allow an object to move further down an incline that rougher ones. Newton then recognized that on a perfectly smooth surface an object could move forever if it did not encounter an opposing forceExplanation:

Answer 2

it is believed that he first started studying the effects of gravity after watching a apple fall.Why did it fall, and what determined the speed at which it fell? it is believed that this incident, as well as his curiosity for seeing stars and planets above without them falling to the ground, led him to develop the laws of motion.