2)Vector Addition A+B=? (1) adding with components, (2) adding by geometrical way. A=Ai+A1.B=B i+B C=A+B=(A+B3)+(A,+B,)j A+B B C=AtB P B P=P+p+2) Vector Addition (1) adding with components; (2) adding by geometrical way. A+ B = ?   B  A  C A B    = + B  A  C A B    = + P1  P2  P3  P4  ... P = P1 + P2 +    P  A A i A j B B i B j x y x y ˆ ˆ , = ˆ + ˆ = +   j ˆ i ( A B ) ˆ C A B ( A B ) = + = x + x + y + y   