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Unformatted text preview: Learning Module 13: Moments in Three
Dimensions Homework 1. Coasider the ﬁgure. Assume that F is 400 kN and G is 60 RN. (3 is paraiiel to the z axis _ it points straighi dowr.
_. and acts at ihe point (2, 3, 24). F lies along the iine from C to A. a. Find the forces and moments from G at point 0. b. Find the forces and moments from F at point 0. 2. A smaii balcony in the French Quarter ofNeW Orieans is supported by her BC. The tension in BC is 260 2b. Wh:
moment does the bar produce on the baicony at A? 3. ii] your text, work probiem 3.59 (pg. 105).
4. in your text, work problom 3.68 (pg. 1 15).
5. In your {ext work probiom 3.70 (pg. E 16).
6. In your text, work problem 3.86 (pg. 119).
7. In your text, work problem 3.25 (pg. 92). 8. In your text, work problem 3.49 (pg.104). Learning Module 14: Free Body Diagrams in
Three Dimensions Homework E. Draw the free—bodyoiagram for the L—shaped crane {SBA} in ﬁgure P393 on page 323. include appropriate
reaction forces and moments at 0. Include all the angles and distances you’d need to write equiiihriom equations
including the sures of the moments. Label your diagram. 2. Draw the free—bodydiagram for the pencil sharpener in ﬁgure P3.1 18 on page 140. include appropriate reaction
forces and moments at 0. Include ail the angles and distances you‘d need to write equilibrium equations including
the sums ofthe moments. Label your diagram. 3. Consider the camera and tripod shown in figure P4106 on page 201. Assume the camera weighs 0.53 lb and the
tripod weighs 0.44 lb as given in problem 4.306. Assume the weight of the camera acts in the middie of the camera
and that the weight of the tripod acts along line DE. 8.) Assume that the foot ofthe tripod at A is a ﬂat surface. What reaction forces and moments exist at A? b) What reaction forces and moments exist at B and C? c) Draw the F139 of the camera/tripod system. 4. in your text, draw the freebody diagram for problem 4.136 (pg. 207). Learning Module 15: Equilibrium in Three
Dimensions Homework i. The ﬂag pole is mounted on a eniversai joint at O and heid to the ground with two eabies. Solve fer the reaction
forces. 401m ' 2. Censider the ﬁgure fmm LEVI] 3, F5 t 400 RN, (3 : 60 kN. G és paraiiei to the z axis , it points straigiﬁt down m ar
acts at the point {2, —3, 24). F ties ateng the iiae from {1:0 A. Find the reactions at O. .. .1, ﬁg.
{559; in
'4'ﬂﬂ a5, mm
*m& . A ‘9’“ Mi. . _*J"" . it. 3. in your text, ﬁnish working problem 4.106 (pg. 20%). You do not need to redraw your FBD.
4. Ear] your text, work problem 4.?30 (pg. 296).
5. E21 your text, work problem 4&36 (pg. 297). 6. In your text, work problem 4.96 (pg. 199). ...
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 Fall '08
 AnnaHoward

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