riley-hill_6098464169441
riley-hill_6098464169441
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Well, basically, distance = velocity * time, and distance = v0t + (1/2)at^2. So distance needs to be equal, i.e.: 8.1 * t = (1/2)*1.8*t^2 Solve for t, we get t = 0 (we knew that), and t = 9. 9 * 8.1 = 72.9 m (a), and speed of the automobile is…