Three forces with magnitudes 80 pounds,110 pounds and 25 pounds act on an object at angles 30°,-70°,and 120° respectively,with the positive x-axis.Find the direction and magnitude of the resultant force.(The choices below are given to two decimal places. )
A) 136.12 pounds at angle of - 66.16° with the positive x-axis
B) 103.21 pounds at angle of 23.84° with the positive x-axis
C) 103.21 pounds at angle of - 66.16° with the positive x-axis
D) 136.12 pounds at angle of - 23.84° with the positive x-axis
E) 103.21 pounds at angle of - 23.84° with the positive x-axis
Correct Answer:
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