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Example Problem Solutions from:Engineering Mechanics: Statics & Dynamicsby R. C. Hibbeler ![]() ![]() |
Author's Homepage:   R. C. Hibbeler
"Friction may be defined as a force of resistance acting on a body which prevents or retards slipping of the body relative to a second body or surface with which it is in contact. This force always acts tangent to the surface at points of contact with other bodies and is directed so as to oppose the possible or existing motion of the body relative to these points."
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