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Phase difference between displacement and velocity in SHM:

Aπ/2 (velocity leads by 90 degrees)
B0
Cπ/4
Dπ
Answer & Solution
Correct answer: A. π/2 (velocity leads by 90 degrees)
x = A sin(ωt), v = Aω cos(ωt) = Aω sin(ωt + π/2). Velocity leads displacement by π/2 (90 degrees). Similarly, acceleration leads velocity by π/2 (so leads displacement by π = 180 degrees).
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