1. Law of Inertia: An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
2. Law of Acceleration: The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This can be expressed as F = ma, where F is force, m is mass, and a is acceleration.
3. Law of Action-Reaction: For every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the second object exerts an equal and opposite force on the first object.
These three laws are the foundation of classical mechanics and are essential for understanding how objects move and interact.