Answer:
m = 1 kg
Step-by-step explanation:
Given that,
The force constant of the spring, k = 39.5 N/m
The frequency of oscillation, f = 1 Hz
The frequency of oscillation is given by the formula as formula as follows :
![f=(1)/(2\pi)\sqrt{(k)/(m)} \\\\f^2=(k)/(4m\pi^2)\\\\m=(k)/(4\pi^2 f^2)\\\\m=(39.5)/(4\pi^2 * (1)^2)\\\\m=1\ kg](https://img.qammunity.org/2021/formulas/physics/college/43wxwpkgv5ipeip51flee1pyi2fo0i3ph0.png)
So, the mass that is attached to the spring is 1 kg.