MECHANICS OF MATERIALS
11th Edition
ISBN: 9780137605521
Author: HIBBELER
Publisher: RENT PEARS
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Chapter 1.2, Problem 19P
Determine the resultant internal loadings acting on the cross section of the hand crank al point A if a vertical force of 50 lb is applied to the handle. Assume the crank is fixed to the shaft at B.
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The rigid bar AB and CD are supported by pins at A and D. the vertical rods are made of aluminum and bronze. Determine the vertical displacement of the point where the force P= 10 kips is applied. Neglect the weight of the members.
Find the reaction at A due to the uniform loading and the applied couple. The force reaction is positive if upward, negative if
downward. The moment reaction is positive if counterclockwise, negative if clockwise.
3.8 kN/m
14.8 kN-m
A
3.9 m
3.9 m-
Answers:
RA =
i
kN
MA = i
kN-m
The vertical load on the hook is 1000 lb. Draw the appropriate free-body diagrams and determine the maximum average shear force on the pins at A, B, and C. Note that due to symmetry four wheels are used to support the loading on the railing.
Chapter 1 Solutions
MECHANICS OF MATERIALS
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