# In Problems 27 through 29, the system of Fig. 7.5.14 is taken as a model for an undamped car with

## Question:

In Problems 27 through 29, the system of Fig. 7.5.14 is taken as a model for an undamped car with the given parameters in fps units. (a) Find the two natural frequencies of oscillation (in hertz). (b) Assume that this car is driven along a sinusoidal washboard surface with a wavelength of 40 ft. Find the two critical speeds.

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**Related Book For**

## Differential Equations And Linear Algebra

**ISBN:** 9780134497181

4th Edition

**Authors:** C. Edwards, David Penney, David Calvis

**Question Details**

Chapter #

**7**Section: Problems 7.5

Problem: 29

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