1. Let and Deter mine the magnitude and direction of (a) ? (b) , (c) and (d) .
2. (a) Determine the magnitude and
direction of the sum of the three vectors , and (b) Determine .
3. Three vectors
are shown in Fig. 3 38. Their magnitudes are given in arbitrary units.
Determine the sum of the three vectors. Give the resultant in terms of (a)
components, (b) magnitude and angle with x axis.