* Newton's First Law of Motion: This law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net force.
* Balanced Forces: Balanced forces are equal in magnitude and opposite in direction. This means they cancel each other out.
Examples of Balanced Forces:
* A book sitting on a table: Gravity pulls the book down, but the table pushes back with an equal and opposite force, keeping the book in place.
* A car driving at a steady speed: The engine's force pushing the car forward is balanced by friction and air resistance acting against it.
* A skydiver reaching terminal velocity: The force of gravity pulling the skydiver down is balanced by the force of air resistance pushing upwards, resulting in constant velocity.
In summary: If an object is not accelerating (either stationary or moving at a constant speed in a straight line), then it is experiencing balanced forces.
