14 Two cares, A and B, travel in a straight line. The distance of A...

14
Two cares, A and B, travel in a straight line. The distance of A from the starting point is
given as a function of time by XA (t) = oct +ßt^2, with o = 2.60 m/s and ß =1.20 m/s?. The
distance of B from the starting point is XB (+) = rt^2 - kt^3with r = 2.80 m/5? and k= 0.20
m/s?. (a) Which car is ahead just after they leave the starting point? (b) At what time(s) are
the cars at the same point? (c) At what time(s) is the distance from A to B neither
increasing nor decreasing? (d) At what time(s) do A and B have the same acceleration?

2 Answers Available
Asked by Eliana on 24th February, 2022