Three forces act on a joint in a roof truss. If two of the forces are $305 / \underline{90^{\circ}}$ and $110 / \underline{0^{\circ}}$, and the resultant of all three forces is $365 / \underline{70.8^{\circ}}$, determine the magnitude of the third force to three significant digits.

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The Answer of Three forces act on a joint in a roof truss. If two of the forces are $305 / \underline{90^{\circ}}$ and $110 / \underline{0^{\circ}}$, and the resultant of all three forces is $365 / \underline{70.8^{\circ}}$, determine the magnitude of the third force to three significant digits.

Three Forces Act on a Joint in a Roof Truss 305/90∘‾305 / \underline{90^{\circ}}305/90∘​

Three Forces Act on a Joint in a Roof Truss $305 / \underline{90^{\circ}}$