A 4.8 kg body is at rest on a frictionless horizontal air track when a constant horizontal force F acting in the positive direction of an x axis along the track is applied to the body. A stroboscopic graph of the position of the body as it slides to the right is shown in the figure. The force F is applied to the body at t = 0, and the graph records the position of the body at 0.50 s intervals. How much work is done on the body by the applied force F between t = 0 and t = 1.2 s? 2.0 s Number 0.5 s [2010 0 t=0) 0.2 1.0 s 0.4 x (m) 1.5 s Units 0.6 11 0.8

A 4.8 kg body is at rest on a frictionless horizontal air track when a constant horizontal force F acting in the positive direction of an x axis along the track is applied to the body. A stroboscopic graph of the position of the body as it slides to the right is shown in the figure. The force F is applied to the body at t = 0, and the graph records the position of the body at 0.50 s intervals. How much work is done on the body by the applied force F between t = 0 and t = 1.2 s? 2.0 s Number 0.5 s [2010 0 t=0) 0.2 1.0 s 0.4 x (m) 1.5 s Units 0.6 11 0.8