Question

average speed can be calculated if you know the distance and the time an object traveled. check your understanding- question 1 of 2 attempt 1 of 2 calculate the average speed for each example. total distance traveled total time of travel average speed 500 mi + 250 mi 2 h + 1.5 h 21 mi + 3 m 7 s + 5 s 50 ft + 250 ft 1 min + 4 min

Explanation:

Step1: Calculate total distance and time for first example

Total distance: \(500 + 250=750\) mi. Total time: \(2 + 1.5 = 3.5\) h. Average speed formula \(v=\frac{d}{t}\), so \(v=\frac{750}{3.5}\approx214.29\) mi/h.

Step2: Calculate total distance and time for second example

Total distance: \(21+3 = 24\) m. Total time: \(7 + 5=12\) s. Using \(v=\frac{d}{t}\), \(v=\frac{24}{12}=2\) m/s.

Step3: Calculate total distance and time for third example

Total distance: \(50+250 = 300\) ft. Total time: \(1 + 4=5\) min. Since \(1\) min \( = 60\) s, \(5\) min \(=300\) s. \(v=\frac{300}{300}=1\) ft/s.

Answer:

First example: Approximately \(214.29\) mi/h. Second example: \(2\) m/s. Third example: \(1\) ft/s.