OnlineCBT
Physics · LAWS OF MOTION
हिन्दीConsider the following statements regarding the behavior of static friction on a block on an inclined plane: (A) Static friction is a self-adjusting force that opposes impending relative motion. (B) The magnitude of static friction cannot exceed \( \mu_s N \). (C) On an inclined plane of inclination \( \theta \), as \( \theta \) increases, the normal force increases. (D) When sliding begins, the frictional force drops slightly to kinetic friction. Which of the above statements are correct?
Correct answer · Option 4
(A), (B) and (D) only
Explanation
Statements (A), (B), and (D) are correct. Statement (C) is incorrect because \( N = mg \cos\theta \), which decreases as \( \theta \) increases.
