(a) Write each vector in Fig. E1.39 in terms of the unit vectors (b) Use unit vectors to express vector where (c) Find the magnitude and direction of

Solution 43E Step 1 of 3: a) A = A + A = (3.60 m) cos 70 i + (3.60 m) sin 70 j = (1.23 m) i + (3.38 m)j x y 0 0 B = Bx+ B y (2.40 m) cos 30 i (2.40 m) sin 70 j = ( 2.08 m) i + ( 1.20 m)j