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Physics · LAWS OF MOTION
हिन्दीGiven below are two statements: Statement I: The maximum value of static friction \( (f_s)_{\text{max}} \) is independent of the area of contact between surfaces. Statement II: The coefficient of kinetic friction \( \mu_k \) is generally slightly greater than the coefficient of static friction \( \mu_s \). In the light of the above statements, choose the most appropriate answer from the options given below:
Correct answer · Option 1
Statement I is correct but Statement II is incorrect.
Explanation
Statement I is correct because limiting static friction depends on normal reaction and surface nature, not contact area. Statement II is incorrect because kinetic friction coefficient \( \mu_k \) is usually less than static friction coefficient \( \mu_s \).
