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 Three forces with magnitudes 80 pounds, 110 pounds and 25 pounds act on an \text { Three forces with magnitudes } 80 \text { pounds, } 110 \text { pounds and } 25 \text { pounds act on an }

Question 7

Multiple Choice

 Three forces with magnitudes 80 pounds, 110 pounds and 25 pounds act on an \text { Three forces with magnitudes } 80 \text { pounds, } 110 \text { pounds and } 25 \text { pounds act on an } object at angles 30,7030 ^ { \circ } , - 70 ^ { \circ } , and 120120 ^ { \circ } respectively, with the positive xx -axis. Find the direction and magnitude of the resultant force. (The choices below are given to two decimal places.)


A) 136.12136.12 pounds at an angle of 66.16- 66.16 ^ { \circ } with the positive xx -axis
B) 103.21103.21 pounds at an angle of 23.8423.84 ^ { \circ } with the positive xx -axis
C) 103.21103.21 pounds at an angle of 66.16- 66.16 ^ { \circ } with the positive xx -axis
D) 136.12136.12 pounds at an angle of 23.84- 23.84 ^ { \circ } with the positive xx -axis
E) 103.21103.21 pounds at an angle of 23.84- 23.84 ^ { \circ } with the positive xx -axis

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