A fixed crane has a mass of 80 kg and is used to lift a 200 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. Determine the reaction forces at A and B. (g = 9.81 m/s2) (Rigid Body Equilibrium) 1 2 m B 3 m 200 kg/ 5 m

A fixed crane has a mass of 80 kg and is used to lift a 200 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. Determine the reaction forces at A and B. (g = 9.81 m/s2) (Rigid Body Equilibrium) 1 2 m B 3 m 200 kg/ 5 m

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter5: Three-dimensional Equilibrium

Section: Chapter Questions

Problem 5.23P: The homogeneous 80-kg sign is suspended from a ball-and-socket joint at O, and cables AD and BC....

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Concept explainers

Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.

Question

A fixed crane has a mass of 80 kg and is used to lift a 200 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. Determine the
reaction forces at A and B. (g = 9.81 m/s2) (Rigid Body Equilibrium)
2 m
B
3 m
G
200 kg/
5 m

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