A) Calculate the work done by a nonlinear spring with force constant k(x) = 100(x+ 0.3x) [N/m] as the spring is stretched from x₁ = 0.2 m to x₂ = 0.6 m. B) What is the average equivalent force acting on the spring over this distance? NOTE: Assume that the spring force equation F=-kx is valid.

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**Problem Statement:**

**A)** Calculate the work done by a nonlinear spring with force constant \( k(x) = 100(x + 0.3x^2) \) [N/m] as the spring is stretched from \( x_1 = 0.2 \, \text{m} \) to \( x_2 = 0.6 \, \text{m} \).

**B)** What is the average equivalent force acting on the spring over this distance? 

**NOTE:** Assume that the spring force equation \( F = -kx \) is valid.
Transcribed Image Text:**Problem Statement:** **A)** Calculate the work done by a nonlinear spring with force constant \( k(x) = 100(x + 0.3x^2) \) [N/m] as the spring is stretched from \( x_1 = 0.2 \, \text{m} \) to \( x_2 = 0.6 \, \text{m} \). **B)** What is the average equivalent force acting on the spring over this distance? **NOTE:** Assume that the spring force equation \( F = -kx \) is valid.
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