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Four forces act on the ring as shown in Fig. 1. If the resultant force FR has a magnitude and direction as shown, determine (a) the magnitude and (b) the coordinate direction angles of force F4. Note that force F3 has coordinate direction angles of 60° and 45° with the x and y axes, respectively, and has the direction angle larger than 90° with the z-axis. F₂ = ON F4 F₁ = 80 N 45° FR = 120 N 30° y X F₁ = 30 N Fig. 1

Four forces act on the ring as shown in Fig. 1. If the resultant force FR has a magnitude and direction as shown, determine (a) the magnitude and (b) the coordinate direction angles of force F4. Note that force F3 has coordinate direction angles of 60° and 45° with the x and y axes, respectively, and has the direction angle larger than 90° with the z-axis. F₂ = ON F4 F₁ = 80 N 45° FR = 120 N 30° y X F₁ = 30 N Fig. 1

Structural Analysis
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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Four forces act on the ring as shown in Fig. 1. If the resultant force FR has a magnitude and direction as shown, determine (a) the magnitude and (b) the coordinate direction angles of force F4. Note that force F3 has coordinate direction angles of 60° and 45° with the x and y axes, respectively, and has the direction angle larger than 90° with the z-axis. F₂ = ON F4 F₁ = 80 N 45° FR = 120 N 30° y X F₁ = 30 N Fig. 1
Transcribed Image Text:Four forces act on the ring as shown in Fig. 1. If the resultant force FR has a magnitude and direction as shown, determine (a) the magnitude and (b) the coordinate direction angles of force F4. Note that force F3 has coordinate direction angles of 60° and 45° with the x and y axes, respectively, and has the direction angle larger than 90° with the z-axis. F₂ = ON F4 F₁ = 80 N 45° FR = 120 N 30° y X F₁ = 30 N Fig. 1
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