A box full of books rests on a wooden floor. The normal forcethe floor exerts on the box is 238 N. (a) You push horizontally on the box with a force of126 N, but it refuses to budge. Whatcan you say about the coefficient of static friction between thebox and the floor? Hs > (b) If you must push horizontally on the box with a force of atleast 135 N to start it sliding, whatis the coefficient of static friction? (c) Once the box is sliding, you only have to push with a force ofl 17 N to keep it sliding. What is thecoefficient of kinetic friction?

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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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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A box full of books rests on a wooden floor. The
normal forcethe floor exerts on the box is 238 N.
(a) You push horizontally on the box
with a force of126 N, but it refuses to
budge. Whatcan you say about the
coefficient of static friction between
thebox and the floor?
Hs>
(b) If you must push horizontally on the
box with a force of atleast 135 N to start
it sliding, whatis the coefficient of static
friction?
(c) Once the box is sliding, you only
have to push with a force ofl17 N to
keep it sliding. What is thecoefficient of
kinetic friction?
Transcribed Image Text:A box full of books rests on a wooden floor. The normal forcethe floor exerts on the box is 238 N. (a) You push horizontally on the box with a force of126 N, but it refuses to budge. Whatcan you say about the coefficient of static friction between thebox and the floor? Hs> (b) If you must push horizontally on the box with a force of atleast 135 N to start it sliding, whatis the coefficient of static friction? (c) Once the box is sliding, you only have to push with a force ofl17 N to keep it sliding. What is thecoefficient of kinetic friction?
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