Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
Problem 38PQ: Kinetic friction is proportional to the normal force (Eq. 5.9). Why should there be an intimate...
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If a horizontal force of 90N was needed to keeps an object weighing 250N sliding at constant speed 30 m/s over horizontal surface, then what was the coefficient of sliding friction?
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