Professor Wells (from the Computer Science department) is going to ride the Argus Cycle Race in Cape Town this weekend. The race is 108 km long. (a) Prof. Wells is comfortable riding at an average speed of 25 km/h, but he would like to ride the race in under 4 hours. What average speed will he need to ride in order to finish the race in 4 hours? (b) During the race, Prof. Wells finds that he rides down a 15 km long hill at an average (9) speed of 45 km/h. This downhill is followed immediately by a 15 km long uphill ride. With what average speed will Prof. Wells need to ride up the hill to maintain an average speed of 30 km/h over the 30 km stretch of road?
Professor Wells (from the Computer Science department) is going to ride the Argus Cycle Race in Cape Town this weekend. The race is 108 km long. (a) Prof. Wells is comfortable riding at an average speed of 25 km/h, but he would like to ride the race in under 4 hours. What average speed will he need to ride in order to finish the race in 4 hours? (b) During the race, Prof. Wells finds that he rides down a 15 km long hill at an average (9) speed of 45 km/h. This downhill is followed immediately by a 15 km long uphill ride. With what average speed will Prof. Wells need to ride up the hill to maintain an average speed of 30 km/h over the 30 km stretch of road?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Professor Wells (from the Computer Science department) is going to ride the Argus Cycle
Race in Cape Town this weekend. The race is 108 km long.
(a) Prof. Wells is comfortable riding at an average speed of 25 km/h, but he would like to ride the race in under 4 hours. What average speed will he need to ride in order to
finish the race in 4 hours?
(b) During the race, Prof. Wells finds that he rides down a 15 km long hill at an average (9)
speed of 45 km/h. This downhill is followed immediately by a 15 km long uphill ride.
With what average speed will Prof. Wells need to ride up the hill to maintain an
average speed of 30 km/h over the 30 km stretch of road?
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