Question: A product inside a package with surrounding foams could be modeled as a mass-spring system with k=1000 N/m and M=5 Kg. During transportation, the truck

A product inside a package with surrounding foams could be modeled as a mass-spring system with k=1000 N/m and M=5 Kg. During transportation, the truck applies an external vibration force of F=20 sin (6 t) to the package. The amplitude is 1 cm for the free vibration portion. 1. Find natural frequency and force frequency

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