Replace the force system by an equivalent resultant force and couple moment at point (. Suppose that Fi = 455 N and F = 700 N . :25m 2m 0.75 m 0.75 m Part A Determine the magnitude of the resultant force. Express your answer to three significant figures and include the appropriate units. ANSWER: Part B Determine the angle between the resultant force and the r axis. Express your answer using three significant figures. ANSWER: ", measured counterclockwise from the negative a axis Part C Determine the equivalent resultant couple moment about point O. Express your answer to three significant figures and include the appropriate units. Enter positive value if the moment is counterclockwise and negative value if the moment is clockwise. ANSWER: (Malo=