The figure below shows two concurrent force vectors of magnitudes 400 lb and 600 lb. a. Express each force as a Cartesian force vector. b. Compute the direction cosine angles of each force vector (three angles per vector) in degrees. c. Find the resultant force expressed as a Cartesian force vector. d. Compute the magnitude and the direction cosine angles of the resultant force vector you found in the previous part. 400 lb 33 600 lb 40 43- 35 I