Determine the angle a between forces F1 and F2. 4ft F = 900 Ib 3 ft F2 = 700 lb 6ft

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter6: Beams And Cables
Section: Chapter Questions
Problem 6.6P: Find the internal force systems acting on sections 1 and 2.
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Determine the angle a between forces F1 and F2.
4ft
F = 900 Ib
3 ft
F2 = 700 lb
6ft
Transcribed Image Text:Determine the angle a between forces F1 and F2. 4ft F = 900 Ib 3 ft F2 = 700 lb 6ft
Expert Solution
Step 1

Given Data:

  • The force F1= 900 lb
  • The force F2 = 700 lb

The unit vector along the force F1 can be determined as,

OA=-6i+3j+7kOA^=-6i+3j+7k-62+32+72=-6i+3j+7k9.69=-0.61i+0.30j+0.72k

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