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A mass attached to a spring oscillates back and forth on a horizontal frictionless surface. The...

A mass attached to a spring oscillates back and forth on a horizontal frictionless surface. The velocity of the mass is modeled by the function v = 2πfA cos(2πft) when at t = 0, x = 0. What is the magnitude of the velocity in cm/s at the equilibrium position for an amplitude of 4.5 cm and a frequency of 2.3 Hz?

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Answer #1

The concept used in this question is of spring mass system , at equilibrium net force is zero and the mean position is the equilibrium position at which the velocity is maximum after applying this concept i deduced the values .

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