A box is sliding with a constant speed of 4.00 m>s inthe +x-direction on a horizontal, frictionless surface. At x = 0 thebox encounters a rough patch of the surface, and then the surface becomeseven rougher. Between x = 0 and x = 2.00 m, the coefficientof kinetic friction between the box and the surface is 0.200; betweenx = 2.00 m and x = 4.00 m, it is 0.400. How much time does it take the box to come to rest after it first encounters the rough patch at x = 0?
A box is sliding with a constant speed of 4.00 m>s inthe +x-direction on a horizontal, frictionless surface. At x = 0 thebox encounters a rough patch of the surface, and then the surface becomeseven rougher. Between x = 0 and x = 2.00 m, the coefficientof kinetic friction between the box and the surface is 0.200; betweenx = 2.00 m and x = 4.00 m, it is 0.400. How much time does it take the box to come to rest after it first encounters the rough patch at x = 0?
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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Question
A box is sliding with a constant speed of 4.00 m>s in
the +x-direction on a horizontal, frictionless surface. At x = 0 the
box encounters a rough patch of the surface, and then the surface becomes
even rougher. Between x = 0 and x = 2.00 m, the coefficient
of kinetic friction between the box and the surface is 0.200; between
x = 2.00 m and x = 4.00 m, it is 0.400. How much time does it
take the box to come to rest after it first encounters the rough patch
at x = 0?
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