A force of 3 N stretches a spring by 1 m. A mass of 4 kg is attached to the spring. At t=0 the
mass is pulled down a distance 1 m from equilibrium and released with a downward velocity of
0.5 m/s. Assuming that damping is negligible, determine an expression for the position of the
mass at time t. Find the circular frequency of the system and the amplitude, phase, and period of
the motion.

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