A vector A~ has a negative x component 2.89 units in length and a positive y component 3.17 units in length. The vector A~ can be written in unit vector notation: a1ˆı + a2ˆ. Find the value of (a) a1 (units) (b) a2 (units) (c) What is the magnitude of A~ (units)? (d) What is the direction of A~ (degrees)? 1