Cars A and B move in the same direction in adjacent lanes. The position x of car

Question

Cars A and B move in the same direction in adjacent lanes. The position x of car A is given in the figure, from time t = 0 to t = 7.0 s. The figure's vertical scaling is set by xs = 34.0 m. At t = 0, car B is at x = 0, with a velocity of 12.5 m/s and a negative constant acceleration aB. (a) What must aB be such that the cars are (momentarily) side by side (momentarily at the same value of x) at t = 4.10 s? (b) For that value of aB, how many times are the cars side by side? How many times will the cars be side by side if the magnitude of acceleration aB is (c) more than and (d) less than the answer to part (a)?

Explanation / Answer

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