Parts c,d, and e please

Other bookmarks R (5%) Problem 11: A certain spring has a spring constant k) = 640 N/m as the spring is stretched from x = 0 to x) =39 cm. The spring constant then changes to k2 = 250 N/m as the spring is stretched to x2 = 75 cm. From x2 = 75 cm to x3 - 97 cm the spring force is constant at F3 = 105 N. leted 20% Part (a) Which of the following graphs represents the force on the spring as a function of displacement? pleted pleted V Correct! pleted pleted apleted 20% Part (b) Use the area under the curve to calculate the work, in joules, necessary to stretch the spring from x = 0 to x 1. ial WO--1 = 48.67