Sir Isaac Newton is credited with the three basic laws of motion. His three laws are the governing principles of flight.
Newton’s laws are as follows:
- A body at rest tends to remain at rest, and a body in motion tends to remain at the same speed and in the same direction. In nature nothing starts or stops moving until an outside force causes it to.
- When a body is acted upon by a constant force, its resulting acceleration is inversely proportional to the mass of the body and is directly proportional to the applied force. Or inertia.
- Whenever one body exerts a force on another, the second body always exerts on the first, a force that is equal in magnitude but opposite in direction. The same rule creates the recoil from a rifle.
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