Page 28 - eEISBN FINALIZE
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Figure 2.14 (b)
2
2
2
= + − 2
2
2
2
= (40 ) + (60 ) − 2(40 )(60 ) 155
2
= 97.73 N
Now, applying the law of sines
sin sin sin
= =
sin sin 155 sin
= =
60 97.73 40
sin 155
= −1 [( ) 60 ] = 15.04
97.73
sin 155
= −1 [( ) 40 ] = 9.96
97.73
= − = 45 − 9.96 = 35
0
0
Example 2.4
Resolve the 150 N forces into components along the x and y axes as shown in Figure 2.14 (a).
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