Answers to Test I

1. (a) MER = { (-300 - 6Ay + 3Az)i + [(6/7)TDF + 6Ax - 6Az]j
              + [(18/7)TDF + 3Ax - 6Ay - 900]k } N.m
   (b) ds = 1.455 m

2. (a) W = 100 N.      (b) A = -160i + 260j N.
 
3. A. (b)      B. (e)       C. (d)

4. See text.