Problem 1 Resultant Force (this is NOT a particle equilibrium problem) Two forces F1 and F2 act on a small object (particle). Given that F = 140 N at 125 with positive x-axis (horizontal to the right) and F2 = (30i + 220j) N a) Find the resultant force vector. Express your answer using polar vector representation. b) Find the unit vector in the direction of the resultant force. Express your answer as u = (ux, uy).