* Force of Friction: This is the force that opposes the motion of the chair. It acts in the opposite direction to your pushing force.
* Your Pushing Force: This is the force you apply to the chair to make it move.
When the chair moves at a constant velocity, the forces are balanced. This means:
* The force of friction is equal in magnitude to your pushing force.
Why is this important?
* Newton's First Law of Motion: An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net force. Since the chair is moving at a constant velocity, there is no net force acting on it. This is only possible if the forces are balanced.
In Summary:
If you push a chair across the floor at a constant velocity, the force of friction is equal and opposite to the force you are applying.