- #1

- 48

- 0

**1. Homework Statement**

The force exerted by an unusual spring when it's compressed a distance 20cm from equilibrium is given by F= -kx-cx

Question: Find the energy stored in this spring when it's been compressed 20cm.

The force exerted by an unusual spring when it's compressed a distance 20cm from equilibrium is given by F= -kx-cx

^{3}, where k= 233 N/m and c= 4.0kN/m^{3}Question: Find the energy stored in this spring when it's been compressed 20cm.

**2. Homework Equations**

Equation already given, I think we supposed to use that one. But the equation of spring constant is U

Equation already given, I think we supposed to use that one. But the equation of spring constant is U

_{s}= (1/2)kx_{0}^{2}-(1/2)kx_{f}^{2}.**3. The Attempt at a Solution .**

I actually just put in the right numbers in the equation given, but was incorrect. Did integrate the function, and was wrong. No clue what to do.

I actually just put in the right numbers in the equation given, but was incorrect. Did integrate the function, and was wrong. No clue what to do.