Question: * * 4 - 5 6 . a ) The force of F = 8 0 l b acts along the edge D B of

**4-56.
a) The force of F=80lb acts along the edge DB of the tetrahedron. Determine the magnitude of the moment of this force about the edge CA.
b) Calculate the magnitude of the perpendicular component of the moment due to force F about line AC.
c) What is the perpendicular distance between the force F and line AC?
d) What is the moment due to F about point B?
* * 4 - 5 6 . a ) The force of F = 8 0 l b acts

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