Q.No.2.3: - Vector A lies in the xy-plane. For what orientation will both of its rectangular components be negative? For what orientation will its components have opposite signs?

Q.No.2.3: - Vector A lies in the xy-plane. For what orientation will both of its rectangular components be negative? For what orientation will its components have opposite signs?

Ans: - In 1^st quadrant x and y are both +ve. In 2^nd x is –ve and y is +ve. In 3^rd both x and y are

–ve. In 4^th quadrant x is +ve and y is –ve. By using this consideration we can say that when vector

 A lies in 1^st quadrant then both of its rectangular components will have same +ve signs when the vector A lies in 2^nd quadrant then x component is –ve but y will be +ve. When A lies is 3^rd quadrant then both components will have same negative signs and in the 4^th quadrant the x and y will have opposite signs means x is +ve and y is –ve