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A vertical spring-mass system is submerged in oil. The spring has a stiffness coefficient of 3...

A vertical spring-mass system is submerged in oil. The spring has a stiffness coefficient of 3 N/m, and the mass is 1 kg. If the dampened angular frequency w of oscillation is 0.866 Hz, find the damping coefficient b from the oil and how long it takes the spring to reach 50 percent of its original amplitude.

a. 2.5 kg/s, 0.35 s

b. 2 kg/s, 0.28s

c. 1.7 kg/s, 0.2s

d. 3 kg, 0.46s

e.1.5 kg/s, 0.2s

f. 3.5 kg/s , 0.49s

g. 4kg/s, 0.56s

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