A spring with spring constant $30\,\text{N m}^{-1}$ hangs vertically from its upper end. The spring follows Hooke’s law. At the start, it is neither compressed nor extended. A mass of $0.50\,\text{kg}$ is attached to the lower end of the spring. The mass is let go from rest and drops. Frictional forces may be ignored. During the subsequent motion, what is the greatest extension of the spring?
- A$0.017\,\text{m}$
- B$0.033\,\text{m}$
- C$0.16\,\text{m}$
- D$0.33\,\text{m}$