Forces

In point O acts three orthogonal forces: F1 = 20 N, F2 = 7 N, and F3 = 19 N. Determine the resultant of F and the angles between F and forces F1, F2, and F3.

Correct answer:

F =  28.5 N
α =  45.4 °
β =  75.8 °
γ =  48.1 °

Step-by-step explanation:

F=202+72+192=28.5 N
α=arccos(F20)=45.4
β=arccos(F7)=75.8
γ=arccos(F19)=48.1



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