Solved: Marys train leaves at 7:15 am and accelerates at
Chapter 0, Problem 42(choose chapter or problem)
Marys train leaves at 7:15 am and accelerates at the rate of 3 meters per second per second. Mary, who can run 6 meters per second, arrives at the train station 2 seconds after the train has left. (a) Find parametric equations that model the motion of the train and Mary as a function of time. [Hint: The position s at time t of an object having acceleration a is s = 1 2 at 2 .]
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