Final answer:
To determine the perpendicular street to Broadway Avenue, observe the average velocity of cars traveling between two poles. The street with the opposite direction of average velocity is perpendicular.
Step-by-step explanation:
To determine which street appears to be perpendicular to Broadway Avenue, we can refer to the information provided. Bridget is observing two poles that are 50 m apart, and it takes 3 seconds for most cars to travel between these poles. Since cars travel at a constant speed, we can calculate their average velocity by dividing the distance traveled (50 m) by the time taken (3 s). The average velocity is 50 m / 3 s = 16.7 m/s.
In a perpendicular direction, the cars would be moving in the opposite direction. Therefore, the average velocity in the perpendicular direction is -16.7 m/s (negative sign indicates opposite direction). From this information, we can conclude that the street perpendicular to Broadway Avenue is the one where the cars are observed to have an average velocity of -16.7 m/s.