JEE Main Physics question

Physics Laws of Motion JEE Main

Statement 1: The maximum speed with which a vehicle can go round a level curve of diameter 20 m without skidding is √10 ms⁻¹, given μ = 0.1. Statement 2: It follows from v ≤ √(μrg).

(A)Assertion is True, Reason is True; Reason is correct explanation for AssertionCorrect
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (A)

Solution

v = √(μrg) = √(0.1×10×10) = √10 ms⁻¹ (r = 10 m, half the diameter).

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Question ID VK-153113