Question

1. three vectors are added following the rules of vector addition. a fourth vector is drawn from the tail of the first vector to the head of the last vector. this fourth vector is referred to as __. a) the equilibrant b) the hypotenuse c) the resultant d) the mistake 2. a vector includes __ and ______. a) scalars, scalars b) direction, units c) direction, magnitude d) magnitude, units

Explanation:

1. When vectors are added using the head - to - tail method, the vector drawn from the tail of the first vector to the head of the last vector is defined as the resultant vector. The equilibrant is equal in magnitude but opposite in direction to the resultant. The hypotenuse is related to right - angled triangles in a different context, and this is not a mistake.
2. By definition, a vector is a quantity that has both magnitude (size) and direction. Scalars have only magnitude. Units are used to measure the magnitude but are not part of what defines a vector conceptually.

Answer:

1. c) the resultant
2. c) direction, magnitude