Question

A spring has k=88 N/m. create a graph and use the graph to determine the work needed to stretch the spring from x = 4.1 cm to x = 5.8 cm, where x = 0 refers to the spring's unstretched length.

Answer 1

Plot k*x vs x (a straight line through the origin) and compute the trapezoidal area under the curve from x = 0.041 to 0.058 m.

The area will have units of Joules.