Find the frequency period and phase angle of motion

Reference no: EM131015513

1. A 10 kg mass stretches a spring 70 cm in equilibrium. Suppose a 2 kg mass is attached to the spring, initially displaced 25 cm below equilibrium, and given an upward velocity of 2 m/s. Find its displacement fort > 0. Find the frequency. period, amplitude, and phase angle of the motion.

2. A weight stretches a spring 1.5 inches in equilibrium. The weight is initially displaced 8 inches above equilibrium and given a downward velocity of 4 ft/s Find its displacement for t > 0.

Reference no: EM131015513

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