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Friction coefficient between two surfaces depends on 4 pointsA) Normal reactionB) Roughness of surfaceC) Force on bodyD) None of these |
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Answer» B) Roughness of surface. ADDTIONAL INFORMATION -------☆------☆------☆------☆------• What is friction ? -> The FORCE which opposes the state of motion is called frition. • Friction is contact force. • It depends on the irregularities of the substance.• TYPES of friction STATIC friction - friction acts in an object which just strat. SLIDING friction - friction acts in an object which slids on the surface Rolling friction - when friction acts on an object which is rolling .# Be brainly |
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