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Friction Force

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AP Physics 1

Definition

Friction force refers to the resistive force that opposes motion or attempted motion between two surfaces in contact with each other.

"Friction Force" also found in:

Subjects (6)

Practice Questions (3)

A 5 kg mass is attached by a massless wire to a 20 kg block (on a flat rough table) and hangs off a pulley to the right of the table. If the system is at rest, what is the friction force between the 20 kg block and the table top?
A 10 kg block is being pulled to the right with a 40 N force at 30° above the x-axis across a rough floor. The block travels a a constant velocity. What is the friction force acting on the block?
A motorcycle goes around a circular curve on a horizontal road at constant speed. What is the direction of the friction force on the motorcycle due to the road?

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