MHT CET Physics question

PhysicsOscillationsMHT CET

A body is executing simple harmonic motion with an angular frequency 2 rad/s. The velocity of the body at 20 mm displacement, when the amplitude of motion is 60 mm, is [Pb. CET 1996, Pb. PMT 1997, AFMC 1998, CPMT 1999, RPMT 2006]

Answer: (C)

Solution

mm/s. 120 mm/s is

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Question ID VK-068112