The railway crossing gate consists of the 100-kg gate arm having a center of mass at Ga and the 250- kg counterweight having a center of mas at GW. Determine the magnitude and directional sense of the resultant moment produced by the weights about point A. 2.5 m 0.75 m 1 X Gw I'm 0.5 m

The railway crossing gate consists of the 100-kg gate arm having a center of mass at Ga and the 250- kg counterweight having a center of mas at GW. Determine the magnitude and directional sense of the resultant moment produced by the weights about point A. 2.5 m 0.75 m 1 X Gw I'm 0.5 m

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.23P: The center of gravity of the 850-N man is at G. If the man pulls on the rope with a 388-N force,...

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Concept explainers

Types of loading

In mechanical terminology, the term load indicates that external force/weight, either constant or variable, acts on a mechanical member/structure. The weight of an object of a specific material is also an external load, and the external force that works on a structure comes under the categories of loading. The external load generates its effects as stress and strain in the structure.

Question

The railway crossing gate consists of the 100-kg gate arm having a center of mass at Ga and the 250-
kg counterweight having a center of mas at GW. Determine the magnitude and directional sense of
the resultant moment produced by the weights about point A.
G₁
2.5 m
0.75 m
+
Gw
0.5 m
0.25 m
1'm

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