When an 18.1 kg object is hung vertically on a certain spring that obeys Hooke's law, the spring stretches from its equilibrium position to 0.318 m. What is the work done by the spring force? {Consider this force is variable. You will need the spring constant} O- 15.5 J O- 12.4 J O- 18.9 J O- 28.2 J O- 23.7 J

When an 18.1 kg object is hung vertically on a certain spring that obeys Hooke's law, the spring stretches from its equilibrium position to 0.318 m. What is the work done by the spring force? {Consider this force is variable. You will need the spring constant} O- 15.5 J O- 12.4 J O- 18.9 J O- 28.2 J O- 23.7 J