Question

The resultant of two vectors acting at a 90°-angle can be determined from the _____ of the rectangle.

A.area
B.size
C.magnitude
D.diagonal

Answer 1

The resultant of two vectors acting at a 90 degree angle is determined by the diagonal.

Answer 2

Answer : The resultant of two vectors acting at a 90°-angle can be determined from the diagonal of the rectangle.

Explanation :

Vector is a quantity that have both magnitude as well as direction.

For example :

Two vectors a and b are acting at a
`90^0` angle, there resultant can be determined from the diagonal of the rectangle(as shown in the attached figure).

Hence, the correct option is (D) " diagonal ".