1. Let and Deter mine the magnitude and direction of (a) ? (b) , (c) and (d) . 2. (a) Determine the.

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.