In the following problems, take g = 32 ft/sec2 for the U.S. Customary System and g = 9.8 m/sec2 for the MKS system.A mass weighing 8 lb is attached to a spring hanging from the ceiling and comes to rest at its equilibrium position. At t = 0, an external force F(t)= 2 cos 2t lb is applied to the system. If the spring constant is 10 lb/ft and the damping constant is 1 lb-sec/ft, find the equation of motion of the mass. What is the resonance frequency for the system?

KEY Sections ON the Syllabus Sections NOT on the Syllabus CHEMISTRY IN FOCUS CHEM 100 CHAPTER 2 NOTES Introduction: In this chapter, you will learn how to use some chemists’ tools. Just as a carpenter learns to use a hammer and a screwdriver to build a cabinet, so you must learn to use the tools of measurement and problem solving...