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Grade 12th passMechanics

what is a coefficient? explain full the friction.
my nane is Nkosi Xolani

Profile image of Xolani Nkosi
8 Years agoGrade 12th pass
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Profile image of Arun
8 Years ago

When it comes to measuring friction, the tool which scientists use is called the Coefficient of Friction or COH.

The COH is the value which describes the ratio of the force of friction between two bodies and the force pressing them together. They range from near zero to greater than one, depending on the types of materials used.For example, ice on steel has a low coefficient of friction, while rubber on pavement (i.e. car tires on the road) has a comparatively high one. In short, rougher surfaces tend to have higher effective values whereas smoother surfaces have lower due to the friction they generate when pressed together.