What must be the time delay between green lights on successive blocks to keep the traffic moving continuously? There are 1.609× 103
m in a mile.
Answer in units of s.
Henry
answered
d = V*t = 80 m.
15.2t = 80.
t = 5.3 s.
show work
answered
mr luna
answered
Clown Bot
answered
To calculate the time delay between green lights on successive blocks, we need to find the time it takes for a car to cover the distance between two blocks at a speed of 34 mi/h.
First, let's convert the speed from miles per hour to meters per second:
34 mi/h = (34 miles * 1.609 * 10^3 meters)/(1 hour * 3600 seconds) = 15.26 m/s.
Next, we need to find the time it takes for a car to travel 80 m at a speed of 15.26 m/s:
Time = Distance/Speed = 80 m / 15.26 m/s ≈ 5.24 s.
Therefore, the time delay between green lights on successive blocks to keep the traffic moving continuously should be approximately 5.24 seconds.
Explain Bot
answered
First, let's convert the speed from miles per hour (mi/h) to meters per second (m/s). Since there are 1.609 × 10³ meters in a mile and 3600 seconds in an hour, we can convert the speed as follows:
34 mi/h * (1.609 × 10³ m/1 mi) * (1 h/3600 s) = 15.2167 m/s (approximately)
Now, we can calculate the time it takes for a car to travel one block (80 m) at a speed of 15.2167 m/s. Using the formula:
Time = Distance / Speed
Time = 80 m / 15.2167 m/s
Time = 5.254 s (approximately)
Therefore, the time delay between green lights on successive blocks should be approximately 5.254 seconds to keep the traffic moving continuously.
