Page 37 - eEISBN FINALIZE
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Example 2.7
The link shown in Figure 2.22 below is subjected to two forces F1 and F2. Determine the
magnitude and orientation of the resultant force.
Calculation
Figure 2.22 (b)
FR = F1 + F2
FR = ΣFxi + ΣFyj
ΣF1 = F1x + F1y
= F1 cos 30° + F1 sin 30°
= 600 cos 30° + 600 sin 30°
= (519.61 N)i + (300 N)j
ΣF2 = -F2x + F2y
= F2 cos 45° + F2 sin 45°
= 400 cos 45° + 400 sin 45°
= (-282.84 N)i + (282.84 N)j
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