Eng: Three fundamental

牛頓運動定律

Three fundamental laws of classical physics developed by English physicist and mathematician Sir Isaac Newton (1642–1727). 1. A body continues in its state of constant velocity unless it is acted upon by an external force. 2. An unbalanced force acting on a body is equal to the acceleration produced multiplied the the inertial mass of the body. 3. In a system where no external forces are present, every acting force opposed by a opposing force of equal magnitude