I watched a video on the three laws of motion. The first law of motion is an object at motion will stay at motion in less a force stops it. And an object at rest will stay at rest in less a force pushes it. Friction is an opposite force that pushes the opposite way on the force.
Isaac Newton went to school and his mother took him out of school. And that's wen Isaac Newton discoverd gravity by siting at his window and saw a apple fall from a tree and that's what got him to make the laws of motion.