Milwaukee is 121 mi (air miles) due west of Grand Rapids. Maria drives 255 mi in 4.75 h from Grand Rapids to Milwaukee around Lake Michigan. Find her average driving speed and her average travel velocity?
Average speed = distance/time = 255 miles/4.75 hours = 53.68 mph (rounded & pretty good for I-94 through Indiana and Chicago). / / / Average velocity = displacement/time = 121 miles west/4.75 hours = 25.47 mph west (rounded).
