Given That the Forces $\mathbf { F } _ { 1 } = ( - 10,3 )$

Essay

Given that the forces $\mathbf { F } _ { 1 } = ( - 10,3 )$ , $\mathbf { F } _ { 2 } = ( - 4,1 )$ and $\mathbf { F } _ { 3 } = \langle 4 , - 10 \rangle$ are acting on a point $p$ , find the resultant force, magnitude and the additional force required in order for the forces to be in equilibrium.