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A mobile crane is lifting a large concrete block W at a constuction site, as shown in the figure below. The crane body has a weight of W₁ = 8500 lb and the crane boom has a weight of W₂ = 1100 lb, which act at the centers of gravity CG₁ and CG₂ respectively. The center of gravity locations (L₁ & L₂), the distance between the front and rear tires (L3), and the location of the lifting weight (L4) are given as follows: L₁ = 30 in, L2 = 95 in, L3 = 105 in, and L4 = 135 in. Note: Express your answers following the standard sign convention for the coordinate system shown. L₂ y Lox CG₂

A mobile crane is lifting a large concrete block W at a constuction site, as shown in the figure below. The crane body has a weight of W₁ = 8500 lb and the crane boom has a weight of W₂ = 1100 lb, which act at the centers of gravity CG₁ and CG₂ respectively. The center of gravity locations (L₁ & L₂), the distance between the front and rear tires (L3), and the location of the lifting weight (L4) are given as follows: L₁ = 30 in, L2 = 95 in, L3 = 105 in, and L4 = 135 in. Note: Express your answers following the standard sign convention for the coordinate system shown. L₂ y Lox CG₂

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A mobile crane is lifting a large concrete block W at a constuction site, as shown in the figure below. The crane body has a weight of W₁ = 8500 lb and the crane boom has a weight of W₂ = 1100 lb, which act at the centers of gravity CG₁ and CG₂ respectively. The center of gravity locations (L₁ & L₂), the distance between the front and rear tires (L3), and the location of the lifting weight (L4) are given as follows: L₁ = 30 in, L2 = 95 in, L3= 105 in, and L4 = 135 in. Note: Express your answers following the standard sign convention for the coordinate system shown. у L₂ X Al W max CG₁ number (rtol=0.01, atol=1e-05) number (rtol=0.01, atol=1e-05) IB (a) If the block weighs W = 3400 lb, find the combined reactions at both rear tires (A) and both front tires (B). NA = NB = CG₂ = number (rtol=0.01, atol=1e-05) lb ? lb ? (b) Determine the maximum weight Wmax that the crane can lift before tipping over. (Hint: When the crane begins to tip, what happens to the rear tires?) W lb ?
Transcribed Image Text:A mobile crane is lifting a large concrete block W at a constuction site, as shown in the figure below. The crane body has a weight of W₁ = 8500 lb and the crane boom has a weight of W₂ = 1100 lb, which act at the centers of gravity CG₁ and CG₂ respectively. The center of gravity locations (L₁ & L₂), the distance between the front and rear tires (L3), and the location of the lifting weight (L4) are given as follows: L₁ = 30 in, L2 = 95 in, L3= 105 in, and L4 = 135 in. Note: Express your answers following the standard sign convention for the coordinate system shown. у L₂ X Al W max CG₁ number (rtol=0.01, atol=1e-05) number (rtol=0.01, atol=1e-05) IB (a) If the block weighs W = 3400 lb, find the combined reactions at both rear tires (A) and both front tires (B). NA = NB = CG₂ = number (rtol=0.01, atol=1e-05) lb ? lb ? (b) Determine the maximum weight Wmax that the crane can lift before tipping over. (Hint: When the crane begins to tip, what happens to the rear tires?) W lb ?
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