3. Refer to the figure below. a. Determine the magnitude of F3 so that the resultant of the three forces is minimum. Also determine the magnitude and direction of the resultant. (Note: Do not solve for the reaction at the support) b. If F2 (150 kN) will be resolved into its components along the y axis and a certain u axis, and that its y-component has a magnitude of 90KN directed upwards, determine its component along the u axis and the orientation of the u axis with respect to the horizontal. F2 = 150 kN 50° F3 35 12 F1 = 60 kN

3. Refer to the figure below. a. Determine the magnitude of F3 so that the resultant of the three forces is minimum. Also determine the magnitude and direction of the resultant. (Note: Do not solve for the reaction at the support) b. If F2 (150 kN) will be resolved into its components along the y axis and a certain u axis, and that its y-component has a magnitude of 90KN directed upwards, determine its component along the u axis and the orientation of the u axis with respect to the horizontal. F2 = 150 kN 50° F3 35 12 F1 = 60 kN

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Beams

In structural engineering, a beam is a component made of a variety of materials (including steel alloys, and wood) that can resist loads applied laterally to the beam axis. Members, elements, rafters, shafts, and purlins are all terms used to describe beams.

Question

3. Refer to the figure below.
a. Determine the magnitude of Fs so that the resultant of the three forces is minimum. Also
determine the magnitude and direction of the resultant. (Note: Do not solve for the reaction
at the support)
b. If F2 (150 kN) will be resolved into its components along the y axis and a certain u axis, and
that its y-component has a magnitude of 90KN directed upwards, determine its component
along the u axis and the orientation of the u axis with respect to the horizontal.
F2 = 150 kN
50
F3
35
12
F1 = 60 kN

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