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Consider the street pattern shown in Fig. 2–42. Each intersection has a traffic signal
Chapter 2, Problem 76GP(choose chapter or problem)
Consider the street pattern shown in Fig. 2–42. Each intersection has a traffic signal, and the speed limit is 50 km/h. Suppose you are driving from the west at the speed limit. When you are 10 m from the first intersection, all the lights turn green. The lights are green for 13 s 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 2.0 m/s2 to the speed limit. Can the second car make it through all three lights without stopping?
Questions & Answers
QUESTION:
Consider the street pattern shown in Fig. 2–42. Each intersection has a traffic signal, and the speed limit is 50 km/h. Suppose you are driving from the west at the speed limit. When you are 10 m from the first intersection, all the lights turn green. The lights are green for 13 s 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 2.0 m/s2 to the speed limit. Can the second car make it through all three lights without stopping?
ANSWER:
Solution 76 GP
Step 1 of 4:
In this question, we need to find the time taken by third spotlight, we also need to check if one can make it through all three lights without stopping
In part b, we need to find if a car stopped at first light when all lights turned green can make it through all the three lights without stopping
Data given
Speed limit
Distance from light
Time green lights are on
Acceleration of car 2
Part a: