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An object with mass 2.5 kg is attached to a spring with spring stiffness constant k...

An object with mass 2.5 kg is attached to a spring with spring stiffness constant k = 270 N/m and is executing simple harmonic motion. When the object is 0.020 m from its equilibrium position, it is moving with a speed of 0.55 m/s.

(a) Calculate the amplitude of the motion. ____m

(b) Calculate the maximum velocity attained by the object. [Hint: Use conservation of energy.] ____m/s

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