A 70 kg bicyclist is riding her 15 kg bicycle downhill on a road with a slope of 8º without pedaling or braking. The bicyclist has a frontal area of 0.45 m² and a drag coefficient of 1.1 in the upright position, and a frontal area of 0.4 m? and a drag coefficient of 0.9 in a racing position. If the downhill speed of the bicyclist (terminal velocity) can be determined when the total force acting on the "body" in the direction of movement is equal to zero, determine the percentage of down speed that she can be increased when she is in a racing position. Air temperature is 15°C and disregarding the rolling resistance and friction at the bearing.

A 70 kg bicyclist is riding her 15 kg bicycle downhill on a road with a slope of 8º without pedaling or braking. The bicyclist has a frontal area of 0.45 m² and a drag coefficient of 1.1 in the upright position, and a frontal area of 0.4 m? and a drag coefficient of 0.9 in a racing position. If the downhill speed of the bicyclist (terminal velocity) can be determined when the total force acting on the "body" in the direction of movement is equal to zero, determine the percentage of down speed that she can be increased when she is in a racing position. Air temperature is 15°C and disregarding the rolling resistance and friction at the bearing.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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