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Force of Friction Equation (Ff=μFn) in AP Physics 1

Verified for the 2027 exam
Verified for the 2027 exam•Fiveable Content Team

Definition

The force of friction equation states that the force of friction (Ff) acting on an object is equal to the coefficient of friction (μ) multiplied by the normal force (Fn).

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AP course connection

Topic 2.3: Contact Forces

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Unit 2

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