Engineering Mechanics - Force Vectors - Discussion
Discussion Forum : Force Vectors - General Questions (Q.No. 19)
19.
Determine the angle 
between the pole AC and the wire AB.
= 131.8° = 70.5° = 109.5° = 48.2°Discussion:
1 comments Page 1 of 1.
Friey said:
3 years ago
Here is the explanation.
oA= 3j
oB=2i+2j-2k
BA=-2i+1j+2k
|BA|=3.
oB * oA=1.
|BA| |1|cosc=1,
cosc=0.333.
c = 70.5.
oA= 3j
oB=2i+2j-2k
BA=-2i+1j+2k
|BA|=3.
oB * oA=1.
|BA| |1|cosc=1,
cosc=0.333.
c = 70.5.
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