first qu eith Walker,nt-Patterson AFB, 937.255.9217 (voice937.512.2183 (MET Office)-25%, Final - 25%,Moments and Couples3-15. A large rock has forces acting on it as shown in Figure P3-15. Determine the moment aboutpoint A.200 lb600 lb31'20FIGURE P3-151200 lb531.53-16. The spring at A in Figure P3-16 opposes the moment about B due to the 500-N force. Deter-mine the moment about B due to the 500-N force. If the spring has an equal and oppositemoment about B, determine the spring tension.500 N15⁰25GURE P3-1617. For the forklift truck shown in Figure P3-17 determine (a) the moment about A due to the twweights shown and (b) the moment about B due to the two weights shown.ForkliftLoadweight4000 lbweight = 1500 lb24

To Find : The moment about point A . Free body diagram : The F.B.D is shown below:

Answered: Moments and Couples 3-15. A large rock…

Moments and Couples 3-15. A large rock has forces acting on it as shown in Figure P3-15. Determine the moment about point A. GURE P3-15 20 1200 lb 5 600 lb 200 lb A 3 3 1.5 2 4

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter11: Columns

Section: Chapter Questions

Problem 11.2.4P: Repeat Problem 11.2-3 assuming that R= 10 kN · m/rad and L = 2 m.

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Question

first qu

eith Walker,
nt-Patterson AFB, 937.255.9217 (voice
937.512.2183 (MET Office)
-25%, Final - 25%,
Moments and Couples
3-15. A large rock has forces acting on it as shown in Figure P3-15. Determine the moment about
point A.
200 lb
600 lb
3
1'
20
FIGURE P3-15
1200 lb
5
31.5
3-16. The spring at A in Figure P3-16 opposes the moment about B due to the 500-N force. Deter-
mine the moment about B due to the 500-N force. If the spring has an equal and opposite
moment about B, determine the spring tension.
500 N
15⁰
25
GURE P3-16
17. For the forklift truck shown in Figure P3-17 determine (a) the moment about A due to the tw
weights shown and (b) the moment about B due to the two weights shown.
Forklift
Load
weight
4000 lb
weight = 1500 lb
2
4

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