3. An undamped spring-mass system has a mass that weighs 48 lb and a spring constant 0.5 lb/in. The mass is suddenly set in motion at t = 0 by an external force of 3 cos(2t) lb. Assume that the gravitational acceleration is g 32 ft/s?. What is the natural frequency for this spring-mass system? Find the position of mass as a function of time t. %3!

Elements Of Electromagnetics
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3. An undamped spring-mass system has a mass that weighs 48 lb and a spring constant
0.5 lb/in. The mass is suddenly set in motion at t = 0 by an external force of 3 cos(2t) lb.
Assume that the gravitational acceleration is g = 32 ft/s?. What is the natural frequency
for this spring-mass system? Find the position of mass as a function of time t.
Transcribed Image Text:3. An undamped spring-mass system has a mass that weighs 48 lb and a spring constant 0.5 lb/in. The mass is suddenly set in motion at t = 0 by an external force of 3 cos(2t) lb. Assume that the gravitational acceleration is g = 32 ft/s?. What is the natural frequency for this spring-mass system? Find the position of mass as a function of time t.
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