Engineering 250 - Statics
Exam#2
Warrior
2no
Chance (1111312013)
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Show your work (you need to support your answers, right or wrong, with the work that leads to those
answers). Each problem is equally weighted in the overall exam grade'
1. A 260-lb force is applied to the cross-section of the l-beam as
shown. Replace this force with an
equivalent force-couple system at the center C of the l-beam. Provide the magnitude and orientation of
the force and couple moment. State the angle the force makes with a horizontal axis and show/state
whether the couple moment is clockwise or counterclockwise.
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o= lf,ffiu**W /*p*)
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n ri6viOte bracket is held in static equilibrium by a cable attached at C and by frictionless rollers at A
and B. For the loading shown, determine (a) the tension in the cable, and (b) the reactions at A and B.
Z.
(point B and point C lie along the same
horizontalaxis)
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. A 200-N force
.rrce about point
is applied to the bracket ABC as shown. Determine the moment (Cartesian vector form) of the
A.
(the 200-N force lies in a plane that is parallel to the x-z plane)
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= /00' - /7a'rl
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t J Il
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- _l ,rot 0.ord(nil)
iln=
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0,060
klA =
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