[问答题]
A 650-N force acts in a northwesterly diq4a2c ziiifb nnh;h;/+ :a( 1rk2blskrection. A second 650-N for bqv )j5g*/ijoce must be exerted in what direcij5/)*bj vqo gtion so that the resultant of the two forces points westward? Illustrate your answer with a vector diagram.