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PROBLEM 2.124
Knowing that the tension in cable AE of Prob. 2.123 is 75 lb,
determine (a) the magnitude of the load P, (b) the tension in
cables BAC and AD.
PROBLEM 2.123 Cable BAC passes through a frictionless
ring A and is attached to fixed supports at B and C, while
cables AD and AE are both tied to the ring and are attached,
respectively, to supports at D and E. Knowing that a 200-lb
vertical load P is applied to ring A, determine the tension in
each of the three cables.
PROBLEM 2.125
Collars A and B are connected by a 525-mm-long wire and
can slide freely on frictionless rods. If a force
(341 N)=Pj
is applied to collar A, determine (a) the
tension in the wire when y
155 mm,=
(b) the magnitude
of the force Q required to maintain the equilibrium of the
system.
AB
(1.90476)
AB
yy
PROBLEM 2.125 (Continued)
PROBLEM 2.126
Solve Problem 2.125 assuming that
275 mm.y=
PROBLEM 2.125 Collars A and B are connected by a
525-mm-long wire and can slide freely on frictionless
rods. If a force
(341 N)=Pj
is applied to collar A,
determine (a) the tension in the wire when y
155 mm,=
(b) the magnitude of the force Q required to maintain the
equilibrium of the system.
PROBLEM 2.127
Two structural members A and B are bolted to a bracket as
shown. Knowing that both members are in compression and
that the force is 15 kN in member A and 10 kN in member B,
determine by trigonometry the magnitude and direction of the
resultant of the forces applied to the bracket by members A and
B.
PROBLEM 2.128
Determine the x and y components of each of the forces shown.
PROBLEM 2.129
A hoist trolley is subjected to the three forces shown. Knowing that
α = 40°, determine (a) the required magnitude of the force P if the
resultant of the three forces is to be vertical, (b) the corresponding
magnitude of the resultant.
PROBLEM 2.130
Knowing that
55
α
= °
and that boom AC exerts on pin C a force directed
along line AC, determine (a) the magnitude of that force, (b) the tension in
cable BC.
PROBLEM 2.131
Two cables are tied together at C and loaded as shown.
Knowing that
360 N,P=
determine the tension (a) in cable
AC, (b) in cable BC.
PROBLEM 2.132
Two cables tied together at C are loaded as shown. Knowing that
the maximum allowable tension in each cable is 800 N,
determine (a) the magnitude of the largest force P that can be
applied at C, (b) the corresponding value of
α
.
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