Answer:
2.05 radians/s
Explanation:
This is a simple harmonic motion. The angular frequency of a loaded spring is given by
[tex]\omega = \sqrt{\dfrac{k}{m}}[/tex]
where [tex]k[/tex] is the spring constant and [tex]m[/tex] is the mass on the spring.
Using the known values,
[tex]\omega = \sqrt{\dfrac{8}{1.9}} = 2.05[/tex]