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 2m / S2. Just at this time, a bicycle drives in the same direction at a speed of 6m / s (1) How long does it take for a car to catch up with a bicycle? The farthest distance between the two cars is the maximum distance between the car and the bicycle (2) What is the speed of the car at this time? When does the car catch up with the bicycle? Just at this time, a bicycle at the speed of 6 m / s drove in the same direction. Passing the car from behind,

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 2m / S2. Just at this time, a bicycle drives in the same direction at a speed of 6m / s (1) How long does it take for a car to catch up with a bicycle? The farthest distance between the two cars is the maximum distance between the car and the bicycle (2) What is the speed of the car at this time? When does the car catch up with the bicycle? Just at this time, a bicycle at the speed of 6 m / s drove in the same direction. Passing the car from behind,

The maximum acceleration time is t = 3S when the speed of two cars is equal, s = VT = 18m in 3 seconds for bicycle, s = 6 / 2 × 3 = 9m for automobile, so the maximum distance is 18-9 = 9m2. When catching up, the displacement of two cars is the same. We calculate vt + 1 / 2at & sup2; = VT + 96 × T + 0.5 × 2 × T & sup2; = 6 × T + 9t = 3S, so v = 6 + 3 × 2 = 12m /