I am not sure on how to approach this problem: Question: Vector A has a negative x component 3.00 units in length and a positive y component 2.00 units in length. a) Determine an expression for A (vector w/arrow hat)in unit-vector notation. b)Determine the magnitude ad direction of A c)What vector B When added to A gives a resultant vector with no x component and a negative y component 4.00 units in length? Can you please give me pointers on how to tackle problems such as these as well as what books/solutions/or things I should do, besides from studying, that will HELP me understand physics. Thanks!