The coefficient of friction between blocks is us = 0.4, at what angle will the block start sliding if it is initially at rest? *** Kindly fill up the respective blanks.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 3P: A toy rocket engine is securely fastened to a large puck that can glide with negligible friction...
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The coefficient of friction between blocks is us = 0.4, at what angle will the block start sliding if it is initially at rest?

*** Kindly fill up the respective blanks.

The coefficient of friction between blocks is us =
0.4, at what angle will the block start sliding if it is initially at rest?
Solution
Let us obtain the net force in the axis perpendicular to the inclined plane.
By virtue of the first law of motion (equilibrium), the net force is
2 F perpendicular = n -
Fgperpendicular =
Thus, the normal force is
n = m
cos
On the axis parallel to the inclined, the net force is
2 FI| = Fg|| -fs,max =
Substituting the forces, we get the following:
mg
smg
By simplifying, we get the following:
tan(theta) = mus
%3D
Thus, the angle that the object will slide is:
(rounded of to the ones)
Transcribed Image Text:The coefficient of friction between blocks is us = 0.4, at what angle will the block start sliding if it is initially at rest? Solution Let us obtain the net force in the axis perpendicular to the inclined plane. By virtue of the first law of motion (equilibrium), the net force is 2 F perpendicular = n - Fgperpendicular = Thus, the normal force is n = m cos On the axis parallel to the inclined, the net force is 2 FI| = Fg|| -fs,max = Substituting the forces, we get the following: mg smg By simplifying, we get the following: tan(theta) = mus %3D Thus, the angle that the object will slide is: (rounded of to the ones)
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