University physics 1: vectors

Ay (m) a). Give R in unit vector notation, i.e., in terms of i and j. 6 4 R b). What is R, the magnitude of R? 2 -6 1-4 1-2 x (m) c). What angle does R make with the positive x-axis? d). What are cos and sin values of the angle you found in part (c)? e). Recall that if f is the unit vector parallelo R, then R = R f. Use above relationship to give f in unit vector notation, i . e . , in terms of i and j