The bar AB in figure "a" has weight W, length L, and is articulated at point B. End A is supported by a light thread, which passes through a smooth pulley, from which a block hangs at its other end. . Required: (a) Determine how much the block must weigh so that bar AB is in equilibrium. (b) Assuming that the block actually has the value calculated before, but instead of the bar being hinged at B, it only rests on a rough plane with coefficient μ= 0.7, as shown in figure "b". Is the bar balanced?
The bar AB in figure "a" has weight W, length L, and is articulated at point B. End A is supported by a light thread, which passes through a smooth pulley, from which a block hangs at its other end. . Required: (a) Determine how much the block must weigh so that bar AB is in equilibrium. (b) Assuming that the block actually has the value calculated before, but instead of the bar being hinged at B, it only rests on a rough plane with coefficient μ= 0.7, as shown in figure "b". Is the bar balanced?
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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The bar AB in figure "a" has weight W, length L, and is articulated at point B. End A is supported by a light thread, which passes through a smooth pulley, from which a block hangs at its other end. . Required: (a) Determine how much the block must weigh so that bar AB is in equilibrium. (b) Assuming that the block actually has the value calculated before, but instead of the bar being hinged at B, it only rests on a rough plane with coefficient μ= 0.7, as shown in figure "b". Is the bar balanced?
Transcribed Image Text:60%
60
W.L
W,L
23
B
(ь)
(a)
Transcribed Image Text:The bar AB in figure "a" has weight W, length L, and
is articulated at point B. End A is supported by a
light thread, which passes through a smooth pulley,
from which a block hangs at its other end. .
Required: (a) Determine how much the block must
weigh so that bar AB is in equilibrium. (b) Assuming
that the block actually has the value calculated
before, but instead of the bar being hinged at B, it
only rests on a rough plane with coefficient µ= 0.7,
as shown in figure "b". Is the bar balanced?
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