The mobile crane is symmetrically supported by two outriggers at A and two at B in order to relieve the suspension of the truck upon which it rests and to provide greater stability. If the crane boom and truck have a mass of 18 Mg and center of mass at G1, and the boom has a mass of 1.8 Mg and a center of mass at G2, determine the vertical reactions at each of the four outriggers as a function of the boom angle θ when the boom is supporting a load having a mass of 1.2 Mg. Plot the results measured from θ = 0° to the critical angle where tipping starts to occur.
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Chapter 5 Solutions
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
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- The jib crane is designed for a maximum capacity of 7 kN, and its uniform I-beam has a mass of 240 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 3.7 m. On the same set of axes, plot the x- and y-components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work.(a) What is the value of R when x = 1.9 m?(b) What is the value of R when x = 3.2 m?(c) Determine the minimum value of R and the corresponding value of x.(d) For what value of R should the pin at A be designed?arrow_forwardThe bent rod is supported at A, B, and C by smooth journal bearings. The rod is subjected to the force F = 620 N . The bearings are in proper alignment and exert only force reactions on the rod. Determine the components of reaction at the bearing AA using scalar notation. Determine the components of reaction at the bearing BB using scalar notation. Determine the components of reaction at the bearing CC using scalar notation.arrow_forwardA fixed crane has a mass of 1000 kg and is used to lift a 2400 kg crate. It is held in place by a pin at A and a rocker at B. The center of gravity of the crane is located at G. The reaction force on the roeker B is.arrow_forward
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- International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L