An object with mass 4.0 kg is attachedto a spring with spring stiffness constant k =300 N/m and is executing simpleharmonic motion. When the object is 0.020 m from its equilibriumposition, it is moving with a speed of 0.55 m/s.
a) Calculate the amplitude of the motion.
b) Calculate the maximum velocity attained by the object. [Hint:Use conservation of energy.