A car is waiting for the green light at the intersection. When the green light is on, the car starts to drive at an acceleration of 3m / S2. Just at this moment, a bicycle comes at a constant speed of 6m / s and overtakes the car from behind? What is the distance at this time? (2) When does the car catch up with the bicycle and what is the speed of the car at this time?

A car is waiting for the green light at the intersection. When the green light is on, the car starts to drive at an acceleration of 3m / S2. Just at this moment, a bicycle comes at a constant speed of 6m / s and overtakes the car from behind? What is the distance at this time? (2) When does the car catch up with the bicycle and what is the speed of the car at this time?

(1) Let the speed of the two cars be equal in t time before catching up with the bicycle. At this time, the distance between the two cars is the farthest, that is, at = V from t = V from a = 63s = 2S. At this time, the distance △ s = s2-s1 = V from t-12at2 & nbsp; & nbsp; & nbsp; & nbsp; (2) the car catches up with the bicycle