Three simple laws of physics

1: An object will remain motionless or move in a straight line at unvarying speed,so as long as no additional forces act on it. Throw a golf ball into empty region of deep space where nothing exist to alter it state and it will simply keep on going. 2: when a force acts on an object the object accelerates in the direction of the force resulting acceleration a directly proportional (force=mass X acceleration 3: Every action has an equal and opposite reaction when a roller skater throws a brick in front of them they will go backward