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Coefficient of Kinetic Friction

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AP Physics 1

Definition

The coefficient of kinetic friction is a value that represents the amount of friction between two surfaces in relative motion.

"Coefficient of Kinetic Friction" also found in:

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Practice Questions (4)

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 cart (m1= 2kg) is setup so it slides across the tabletop. It’s attached to a hanging mass (m2 = 10kg) and released from rest. The coefficient of kinetic friction between the cart and the tabletop is 0.5. What is the acceleration of the cart?
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?
Force is applied to a 10 kg block is resting on a rough floor. Once moving, only 80 N of force is required to keep the box moving at a constant velocity. What is the coefficient of kinetic friction between the block and the floor?

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