Between 1665 - 1667 Newton came home from college because it was closed due to the Great Plague. According to legend, he was sitting under a tree when an apple fell and hit him on the head. Causing him to wonder about gravity and how it worked. what most likely happened is he saw an apple fall from a tree and wondered why it didn’t fall at an angle. After that experience, he began research on theories of motion and gravity. During this 18 month period, he made many of his most important discoveries including his theory of gravity. It states “every mass attracts every other mass in the universe, and the gravitational force between two bodies is proportional to the …show more content…
1st law states “Every object persists in its state of rest or uniform motion in a straight line unless it is compelled to change that state by forces impressed on it.” To Sum it up every object stayed still or moves in a straight line unless an outside force hits it. 2nd law ”Force is equal to change in momentum (mV) per change in time. For a constant mass, force equals mass times acceleration.” To sum that up to the velocity of object changes when an outside force touches it, such as Friction, or kicking. 3rd law, ”For every action, there is an equal and opposite reaction.” And finally, to sum this up let's say an object hits another object they both will apply the same amount of force to each