Page 25 - eEISBN FINALIZE
P. 25
By using Parallelogram method, the angles are known
o
β = 30
o
o
o
γ = 15 + 90 = 105
o
o
o
o
α = 180 – 105 – 30 = 45
Now, applying the law of sines
sin sin sin
= =
sin 45 sin 105 sin 30
= =
30
sin 45
= ( ) 30 = 21.96
105
sin 30
= ( ) 30 = 15.53
105
Example 2.2
Figure 12 (a), shows components acting along u and v axes. Calculate the magnitude of component.
Figure 12 (a)
Calculation
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