Consider the street pattern shown in Fig.2-42.Each intersection has a traffic signal, and the speed limit us 50km/h. suppose you are driving from the west at the speed limit. When you are 10m from the first intersection, all the lights turn green. The lights are green for 13s each.
(a) Calculate the time needed to reach the third stoplight. Can you make it through all three lights without stopping?
(b) Another car was stopped at the first light when all the lights turned green. It can accelerate at the rate of 2.0m/s2 to the speed limit. Can the second car make it through all three lights without stopping?

East West 0000 - Speed limit 50 km/h 70 m Your 50 m 15 m 10 m car 15 m 15 m