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

Multiple Choice

$\text { Three forces with magnitudes } 80 \text { pounds, } 110 \text { pounds and } 25 \text { pounds act on an }$ object at angles $30 ^ { \circ } , - 70 ^ { \circ }$ , and $120 ^ { \circ }$ 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 an angle of $- 66.16 ^ { \circ }$ with the positive $x$ -axis
B) $103.21$ pounds at an angle of $23.84 ^ { \circ }$ with the positive $x$ -axis
C) $103.21$ pounds at an angle of $- 66.16 ^ { \circ }$ with the positive $x$ -axis
D) $136.12$ pounds at an angle of $- 23.84 ^ { \circ }$ with the positive $x$ -axis
E) $103.21$ pounds at an angle of $- 23.84 ^ { \circ }$ with the positive $x$ -axis