The st graph for a train has been experimentally
Chapter 12, Problem 12-36(choose chapter or problem)
The st graph for a train has been experimentally determined. From the data, construct the vt and at graphs for the motion; 0 t 40 s. For 0 t 30 s, the curve is s = (0.4t 2) m, and then it becomes straight for t 30 s.
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