377

5–71. The rod assembly is used to support the 250-lb cylinder.Determine the components of reaction at the ball-and-socket joint A, the smooth journal bearing E, and the forcedeveloped along rod CD. The connections at C and D areball-and-socket joints.

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x y

z

D

A

C

E

F1 ft1 ft

1 ft1.5 ft

1 ft

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378

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379

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*5–72. Determine the components of reaction acting at thesmooth journal bearings A, B, and C.

0.6 m45�

x y

C

z

B

A0.4 m

0.8 m

0.4 m

450 N

300 N � m

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381

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5–74. If the load has a weight of 200 lb, determine the x, y,z components of reaction at the ball-and-socket joint A andthe tension in each of the wires.

y

x

z

C

A

D

E

F

GB

2 ft

2 ft

2 ft

2 ft

3 ft

2 ft4 ft

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382

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385

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5–78. The plate has a weight of W with center of gravity atG. Determine the tension developed in wires AB, CD, andEF if the force P = 0.75W is applied at d = L/2.

z

F

B

D

A

H

y

xG

d

E

C

P

L––2

L––2

L––2

L––2

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561

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7–18. Determine the internal normal force, shear force,and moment at points D and E in the overhang beam. PointD is located just to the left of the roller support at B, wherethe couple moment acts.

2 kN/m

5 kN

3 m 1.5 m 34

5

AD B E

C

6 kN � m

1.5 m

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579

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•7–37. The shaft is supported by a thrust bearing at A anda journal bearing at B. Determine the x, y, z components ofinternal loading at point C.

1 m

1 m

0.5 m0.2 m

0.2 m

1 m

750 N

750 N

600 N

z

C

y

x900 N

A

B

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604

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•7–57. Draw the shear and moment diagrams for theoverhang beam.

4 kN/m

3 m 3 m

AB

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607

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7–59. Determine the largest intensity of the distributedload that the beam can support if the beam can withstand amaximum bending moment of and amaximum shear force of .Vmax = 80 kN

Mmax = 20 kN # m

w0 w0

4.5 m 1.5 m

AB C

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608

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