a. Interstate 25 to Cheyenne, WY
Road distance in miles (from the map) = 549
Driving time = = = 9.98 hours
b. Interstate 80 to Rock Springs
Road distance in miles (from the map) = 158
Driving time = = = 2.87 hours
Total driving time from Albuquerque to Rock Springs = 9.98 + 2.87 =12.85 = 13 hours (to the nearest half hour).
A brief description of the process used to construct the problem:
The average aircraft groundspeeds for the two stages of travel are provided with the help of atlas and road maps. Since the students are required to find the travel time, they have to use an atlas or road map, which can give the air travel distance as the straight line distance between the required points.
Problem Statement :
Given: You travel by air from Memphis, TN, to Las Vegas, NV, with stops in Oklahoma City, OK, and El Paso, TX, en route. Average aircraft groundspeed is 380 km/hour from Memphis to Oklahoma City and 310 km/hour from Oklahoma City to Las Vegas.
What would be your total travel time (to the nearest half hour)?
1. Find the air travel distance between the points from the map. This can be done by measuring the distance between the points in the map and multiplying this distance with the scale of the map.
2. To get the Travel Time, divide the distance by the aircraft groundspeed.
Travel by air from Memphis, TN, to Las Vegas, NV, with stops in Oklahoma City, OK, and El Paso, TX, en route.
Air travel distance from Memphis to Oklahoma City = 756.39 km