Question

two vectors of magnitudes 7 units and 15 units can never give resultant of?
a)7 units
b)11 units
c)13 units
d)20 unit

Answer 1

The resultant of two vectors A and B can have a magnitude ranging between ||A||±||B||.

The minimum is when they are lined up and opposite to each other, and the minimum is when they are lined up and in the same direction.

Now you can make your choice of answers.

Answer 2

The minimum is when they are lined up and opposite to each other, and the <i>maximum</i> is when they are lined up and in the same direction.