Chapter 2.1, Problem 52E

Three forces with magnitudes $\text{80}\text{lb,}\text{120}\text{lb,}$ and $\text{60}\text{lb}$ act on an abject at angles of $\text{45°,}\text{60°}$ and $30°$ , respectively, with the positive $x\text{-axis}$ . Find the magnitude and direction angle from the positive $x\text{-axis}$ of the resultant farce. (Round to two decimal places.)