The correct answer is 47 units.
Arrows typically serve as a vector's geometric representation. The magnitude of the vector is determined by its length and the direction in which the arrow is pointing. When two vectors have the same magnitude and direction, they are said to be equal. Additionally, the magnitude and direction of vectors are unaffected by the vector's position.
A quantity with both magnitude and direction is referred to as a vector quantity. One example of a vector quantity is velocity. A two-dimensional vector can be expressed as,
A=A_Xi+A_Yj
Vector A=31 j
A+B=-16 j
Thus vector B is
B=(A+B)-A
B=(-16j)-31j
B=(-47)j
As a result, vector B has a magnitude of 47 units and is oriented in a negative Y direction.
To learn more about vector quantity refer the link:
https://brainly.com/question/3482586
#SPJ4
