Solve the Problem $\le$ 8 How Much Work Is Done in Compressing the Spring

Multiple Choice

Solve the problem.
-Hooke's law is applicable to idealized (linear) springs that are not stretched or compressed too far. Consider a nonlinear spring whose restoring force is given by F(x) = 15x - 0.3 , for |x| $\le$ 8. How much work is done in compressing the spring from its equilibrium position (x = 0) to x = -0.5? Round to two decimal places when appropriate.

A) 1.87 J
B) 172.8 J
C) 345.6 J
D) 3.73 J