Chapter 14, Problem 61A

To determine

The period of vibration.

Answer to Problem 61A

The period of vibration of the Wills Tower in Chicago is $8.33\text{s}$ .

Explanation of Solution

Given:

Frequency of the wind is $0.12\text{Hz}$

Formula Used:

  $f=\frac{1}{T}$

Where,

  $f$ =Frequency

  $T$ =Time

Calculation:

Substituting the given values and solve:

  $T=\frac{1}{F}$

  $\begin{array}{l}T=\frac{1}{0.12\text{Hz}}\\ T=8.33\text{s}\end{array}$

Conclusion:

Hence, the period of vibration of The Wills Tower in Chicago is $8.33\text{s}$ .