A 7.1 kg body is at rest on a frictionless horizontal air trackwhen a constant horizontal force actingin the positive direction of an xaxisalong the track is applied to the body. A stroboscopic graph of theposition of the body as it slides to the right is shown in Fig.7-26. The force isapplied to the body at t =0, and the graph records the position of the body at 0.50 sintervals. How much work is done on the body by the applied force between t =0.48 and t =1.2 s?