Consider a typical cell phone set in a vibration mode. To simplifythe problem, we assume that a cell phone consists of a motherboardof mass m mounted on a shell of mass M through mounts shown below.When an incoming signal is recieved, a stream of alternatingelectrix charges is generated. Suppose that the frequency ofalternative charges is constant, Ω which is converted force willexcite the motherboard directly, which is undesirable in the longrun. How will you mount a motherboard onto the case? Use equationsof motion and their solutions to justify hour arguments.The ground surface imposes no constraint on the system and thrwhole
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