(Solved): Replace the force system acting on the frame by an equivalent resultant force, and specify where th ...

Replace the force system acting on the frame by an equivalent resultant force, and specify where the resultant's line of action intersects member $AB$ (Figure 1). Suppose that $F_1=25\mathrm{lb}$ $F_2=45\mathrm{lb}$, and $F_3=55\mathrm{lb}$. Figure 1 of 1 Determine the magnitude of the resultant force. Express your answer in pounds to three significant figures. Part B Determine the angle between the resultant force and the $x$ axis Express your answer in degrees to three significant figures. Specify where the resultant's line of action intersects member $AB$. measured from point $A$ Express your answer in feet to three significant figures.