3 - The sliding glass door rolls on thetwo small lower wheels ( A ) and(B ). Under normal conditions the40upper wheels don't touch theirhorizontal guide .a - compute the force ( P) requiredto slide the door at a steadyspeed if the wheel ( A ) becomesP" frozen " and does not turn inits bearing.b - Rework the problem if wheel ( B) becomes " frozen " instead ofwheel (A). if the coefficient40of friction between a frozenA28"wheel and supporting surface is( 0.3 ), and the center of massof the ( 140 N ) door is at itsgeometric center. Neglect the small diameters of the wheel44برعاية المحتویII>

Given: μ=0.30centre of mass =140lb

3- The sliding glass door rolls on the two small lower wheels ( A ) and (B). Under normal conditions the upper wheels don't touch their horizontal guide. a - compute the force ( P) required to slide the door at a steady speed if the wheel ( A) becomes " frozen " and does not turn in its bearing.

3- The sliding glass door rolls on the two small lower wheels ( A ) and (B). Under normal conditions the upper wheels don't touch their horizontal guide. a - compute the force ( P) required to slide the door at a steady speed if the wheel ( A) becomes " frozen " and does not turn in its bearing.

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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Concept explainers

Clutches, Brakes, Couplings, and Flywheels

The clutch is described as a machine element used to connect or disconnect two shafts together to transmit torque or power. The clutch works on the principles of friction. The clutch is commonly used in automobiles to transfer power from the driving shaft to the driven shaft.

Question

3 - The sliding glass door rolls on the
two small lower wheels ( A ) and
(B ). Under normal conditions the
40
upper wheels don't touch their
horizontal guide .
a - compute the force ( P) required
to slide the door at a steady
speed if the wheel ( A ) becomes
P
" frozen " and does not turn in
its bearing.
b - Rework the problem if wheel ( B
) becomes " frozen " instead of
wheel (A). if the coefficient
40
of friction between a frozen
A
28"
wheel and supporting surface is
( 0.3 ), and the center of mass
of the ( 140 N ) door is at its
geometric center. Neglect the small diameters of the wheel
44
برعاية المحتوی
II
>

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