1. The problem statement, all variables and given/known data A 2.0 kg lunchbox is sent sliding over a frictionless surface, in the positive direction of an x axis along the surface. Beginning at time t = 0, a steady wind pushes on the lunchbox in the negative direction of the x axis. Figure 7-50 shows the position x of the lunchbox as a function of time t as the wind pushes on the lunchbox. From the graph, estimate the kinetic energy of the lunchbox at (a)t = 1.0 s and (b)t = 5.0 s. (c) How much work does the force from the wind do on the lunchbox from t = 1.0 s to t = 5.0 s? http://edugen.wiley.com/edugen/courses/crs1650/art/qb/qu/c07/fig07_50.gif Fig. 7-50 2. Relevant equations Change in Y/ Change X K = .5mv^2 3. The attempt at a solution I tried finding the slope for each part bc that would be the velocity and then I plug in the velocity into the K equation but it did not work. I am not sure what else to try after that.