Answered: F, = (-30i + 60j + 60k)kN %3D Forces… | bartleby

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F = (-30i + 60j + 60k )kN
%3D
Forces are concurrent at point O.
Determine the magnitude of the resultant
of the three vectors.
a 71.5 kN
b 187 kN
F, = (60i – 20j+ 15k )kN
c 116 kN
d 83.7 kN
Determine the angle between F, andF,.
F, = (20j – 25k)kN
X
а 111°
b 132°
c 69.0°
d 21.0°
Select the expression that denotes a unit vector in the direction and sense of F,.
a 0.625j -0.781k
b 0.625i -0.781j
c -0.625 j –0.781k
d 0.625i +0.781j

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