Two cars start from rest at a red stop light. When the lightturns green, both cars accelerate forward. The blue car acceleratesuniformly at a rate of 4.7 m/s2 for 3.8 seconds. It thencontinues at a constant speed for 8.7 seconds, before applying thebrakes such that the car’s speed decreases uniformly coming to rest212 meters from where it started. The yellow car acceleratesuniformly for the entire distance, finally catching the blue carjust as the blue car comes to a stop.
1. How fast is the blue car going 2.7 seconds after itstarts?
2. How fast is the blue car going 10.2 seconds after it starts?
3. How far does the blue car travel before its brakes areapplied to slow down?
4. What is the acceleration of the blue car once the brakes areapplied?
5. What is the total time the blue car is moving?
6. What is the acceleration of the yellow car?
