M 1 m Figure 4 In the space truss shown in Figure 4, member BC, CD and DB form an equilateral triangle in the horizontal plane, and point A is 2 m above this triangle BCD. Point M is the centroid of triangle BCD. The mass of the truss can be neglected. If an external load of 6i kN is applied at Joint A, determine the forces in each of the three members AB, AC, and AD of the truss.

M 1 m Figure 4 In the space truss shown in Figure 4, member BC, CD and DB form an equilateral triangle in the horizontal plane, and point A is 2 m above this triangle BCD. Point M is the centroid of triangle BCD. The mass of the truss can be neglected. If an external load of 6i kN is applied at Joint A, determine the forces in each of the three members AB, AC, and AD of the truss.

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 4.89P: Compute the magnitude of the pin reaction at B. Neglect the weights of the structural members.

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