Coefficient of Static Friction
Definition
The coefficient of static friction is a value that represents the maximum amount of friction that can exist between two surfaces before they start sliding against each other.
Analogy
Imagine you are trying to push a heavy box on the floor. The coefficient of static friction is like the initial resistance you feel when trying to move the box. If it's too high, you'll struggle to get it moving.
Related terms
Friction: The force that opposes motion between two surfaces in contact.
Normal Force: The force exerted by a surface perpendicular to an object pressing against it.
Static Equilibrium: A state where an object is at rest and all forces acting on it are balanced.
"Coefficient of Static Friction" appears in:
Subjects (2)
Practice Questions (5)
A 50.0 N box is at rest on a horizontal surface. The coefficient of static friction between the box and the surface is 0.50, and the coefficient of kinetic friction is 0.40. A horizontal 20.0 N force is then exerted on the box. The magnitude of the acceleration of the box is most nearly
A 0.5 kg box rests on a flat rough table. If it takes 3 N of force to first move the box, which of the following is closest to the coefficient of static friction between the box and the table?
There is a 10 kg block resting on the ground with a coefficient of static friction of 0.8 and a coefficient of kinetic friction of 0.3. The block is pulled horizontally by a 55 N force but stays at rest. How much friction acts on the block?
There is a 10 kg block resting on the ground with a coefficient of static friction of 0.8 and a coefficient of kinetic friction of 0.3. The block is pulled horizontally by a 200 N force. How much friction acts on the block?
A block is placed on a rough ramp made of wood. If the coefficient of static friction is 0.8, what is the critical angle between the ramp and the block?
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