friction friction results from relative motion between objects. frictional forces are forces that...
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Friction Friction results from relative
motion between objects. Frictional forces are forces that
resist or oppose motion.
![Page 2: Friction Friction results from relative motion between objects. Frictional forces are forces that resist or oppose motion](https://reader035.vdocument.in/reader035/viewer/2022062221/56649ec05503460f94bcc5e4/html5/thumbnails/2.jpg)
Coefficient of friction ()
—Feet on rocks = large
—Polar bear on ice = small
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Friction(A Fun Formula)
Ff = Fnfun
get it?
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Friction(A Fun Formula)
Ff = Fn
Normal force (N)
Coefficient of frictionNo units!
Friction force (N)
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Friction
Ff = Fn=FfFnFn =
Ff /
To solve for frictional force
To solve for normal force
To solve for coefficient of friction
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Calculate force of friction
A box weighs 100 N (Fn).
As the box is pushed horizontally, the coefficient of sliding friction is 0.25.
Determine the force of friction resisting the motion.
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To solve for frictional force:
Ff = Fn
Fn = 100 N Ff = (0.25)(100 N) Ff = 25 N