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The constant of proportionality linking maximum static friction to the normal force is the coefficient of:
AStatic friction
BRestitution now
CViscosity now
DExpansion now
Answer & Solution
Correct answer: A. Static friction
1. Friction rises with how hard the surfaces are pressed together.
2. The ratio between them depends only on the nature of the surfaces.
3. That ratio is the coefficient of static friction.
_Source: NCERT Class 11 Physics Part I, Chapter 5, Laws of Motion._
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