Kinetic Friction
Definition
Kinetic friction is the force that opposes the motion of an object when it is already moving. It occurs between two surfaces in contact and depends on the coefficient of kinetic friction and the normal force.
Analogy
Imagine trying to slide a heavy box across a rough floor. The kinetic friction is like someone pushing back against you as you try to move the box, making it harder for you to slide it smoothly.
Related terms
Coefficient of Kinetic Friction: A value that represents how rough or smooth two surfaces are in contact. It determines the strength of kinetic friction.
Static Friction: The force that opposes motion when an object is at rest and trying to be moved.
Rolling Friction: The resistance encountered by an object rolling over a surface, which is generally smaller than kinetic or static friction.
"Kinetic Friction" appears in:
Study guides (1)
Practice Questions (2)
- Which of the following is not true about Kinetic friction?
- If µs = 0.6 between a 100kg block and the level ground, which of the following is a possible force of kinetic friction between the box and the surface as it slides across?
Resources
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