Answer:
1.34 s
Explanation:
The period T is given by
[tex]T=\frac {2\pi \sqrt{\frac {m}{k}}[/tex]
Where m is the mass of the object, in this case a car while k is the spring constant.
Substituting 1405 kg for m and 30900 N/m for k in the above equation we obtain
[tex]T=\frac {2\pi \sqrt{\frac {1405 Kg}{30900 N/m}= 1.339796 s\approx 1.34 s[/tex]
Therefore, the period is approximately 1.34 s