A 4.1 kg body is at rest on a frictionless horizontal air track when a constant

Question

A 4.1 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 = 1.9 s? Number Units the tolerance Is + -1 In the 3rd significant digit

Explanation / Answer

W=F*d

=mad=mvd/t=md2/t2=4.1*0.752/1.92

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