) A mass hanging on a spring oscillates with a natural frequency of 9 rad/sec. If initially it is displaced 0.14 m in the positive direction from equilibrium and given negative initial velocity of 0.25 m/s, determine the position of the mass (in m) after 2 s. Assume up is the positive direction. Dreview My Apower m Submit Apewor

A force of 15 Newtons stretches a spring 20 centimeters. After a 3 kilogram mass is attached to the spring, the mass is pulled down to a position √3 meters below equilibrium and released with an upward velocity of 5 meters per second. Find a. The equation of motion. b. The amplitude, period, and phase shift of the simple harmonic motion.

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