PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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1. The cord AB has a length of 5 m and is attached to the end B of the spring having a stiffness k = 10 N/m.
The other end of the spring is attached to a roller C so that the spring remains horizontal as it stretches. If a
10 N weight is suspended from B, determine the necessary un-stretched length of the spring, so that = 40°
for equilibrium.
5 m
5 m
5 m-
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k = 10 N/m
Determine the unstretched length of spring AC if a force P = 100 Ib causes the angle 0= 52° for equilibrium. Cord AB
is 2 ft long. Take k = 35 lb/ft.
2 ft
2 ft
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5. The two bars each have a weight of 8 lb. Determine the required stiffness k of the springs so that the two
bars are in equilibrium when 0 = 30. The spring has an unstretched length of 1 ft.
2 ft
B
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2 ft
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- The bucket has weight W. Determine the tension developed in each cord for equilibrium. Given: W := 100N a := 0.6m b = 0.6m c:= 2.4m d := 2.1m e := 0.9m f := a B D Carrow_forwardSpring CD remains in the horizontal position at all times due to the roller at D. If the spring is unstretched when 0 = 0° and the stiffness is k = 1.5 kN/m, determine the smallest angle for equilibrium and the horizontal and vertical components of reaction at pin А. 0.45 m 0.6 m B F= 300 N Aarrow_forwardDetermine the minimum tension in the rope at points A and B that is necessary to maintain equilibrium. Take µ = 0.3 between the rope and the fixed post D. 300 lb T D B 60° Aarrow_forward
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