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Mechanics of Materials | 10th Edition | ISBN: 9780134319650 | Authors: Russell C. Hibbeler
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The railcar docklight is supported by the 1 8-in.-diameter

Chapter 1, Problem 1-49

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QUESTION:

The railcar docklight is supported by the \(\frac{1}{8}\)-in.-diameter pin at A. If the lamp weighs 4 lb, and the extension arm AB has a weight of 0.5 lb/ft, determine the average shear stress in the pin needed to support the lamp. Hint: The shear force in the pin is caused by the couple moment required for equilibrium at A.

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QUESTION:

The railcar docklight is supported by the \(\frac{1}{8}\)-in.-diameter pin at A. If the lamp weighs 4 lb, and the extension arm AB has a weight of 0.5 lb/ft, determine the average shear stress in the pin needed to support the lamp. Hint: The shear force in the pin is caused by the couple moment required for equilibrium at A.

ANSWER:

Problem 1-49The railcar docklight is supported by the 1-in.-diameter pin at A. If the lamp weighs 4 lb, and the 8extension arm AB has a weight of 0.5 lb/ft, determine the average shear stress in the pinneeded to support the lamp. Hint: The shear force in the pin is caused by the couple momentrequired for equilibrium at A. Step-by-step solution Step 1 of 4 ^Calculate the weight of the arm AB. W arm =0.5 lb/ft x 3ft = 1.5 lb

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