where s is measured along the trajectory. At what time will the bicyclist reach an acceleration of 28 ft/s²?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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7)
A bicyclist enters a decreasing radius turn and maintains a constant speed of 20 mph.
The radius of curvature of the turn varies as:
p=50 -0.0025s² ft
where s is measured along the trajectory. At what time will the bicyclist reach an
acceleration of 28 ft/s²?
ANS. t 3 sec
Transcribed Image Text:7) A bicyclist enters a decreasing radius turn and maintains a constant speed of 20 mph. The radius of curvature of the turn varies as: p=50 -0.0025s² ft where s is measured along the trajectory. At what time will the bicyclist reach an acceleration of 28 ft/s²? ANS. t 3 sec
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