3. A two bar truss structure is shown in Figure 1. The coordinates of Points A, C and B are given by (0,0), (0, 10") and (10",0), respectively, in which the x-axis is from A to B and the y-axis is from A to C. Points A and C are fixed. The cross-sectional area of all members in inch?. A vertical point load, P, is applied at the tip of the structure, Point B. Based upon either the Principle of Total Potential Energy, the Principle of Virtual Work or the First Castigliano Theorem, find the horizontal deflection at Point B of the two-member truss structure. In this problem, hwer, the truss members follow the lincar stress strain relation, ơ-105 . Hint: Point B will move in both x and y directions. Thus, it is necessary to build two equations to solve the displacements along both x and y directions, Figure 1. 2 Bar Truss for Problem 1 3. A two bar truss structure is shown in Figure 1. The coordinates of Points A, C and B are given by (0,0), (0, 10") and (10",0), respectively, in which the x-axis is from A to B and the y-axis is from A to C. Points A and C are fixed. The cross-sectional area of all members in inch?. A vertical point load, P, is applied at the tip of the structure, Point B. Based upon either the Principle of Total Potential Energy, the Principle of Virtual Work or the First Castigliano Theorem, find the horizontal deflection at Point B of the two-member truss structure. In this problem, hwer, the truss members follow the lincar stress strain relation, ơ-105 . Hint: Point B will move in both x and y directions. Thus, it is necessary to build two equations to solve the displacements along both x and y directions, Figure 1. 2 Bar Truss for Problem 1


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