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

1. a vector includes

a) scalars, scalars
b) direction, units
c) direction, magnitude
d) magnitude, units

Explanation:

1. When adding vectors using the head - to - tail method, the vector drawn from the tail of the first vector to the head of the last vector is called the resultant. The equilibrant is a vector that has the same magnitude as the resultant but acts in the opposite direction. So, the fourth vector described in question 1 is the resultant.
2. A vector is a quantity that has both magnitude and direction. Scalars only have magnitude. Units are used to measure both scalars and vectors. So, a vector includes magnitude and direction.

Answer:

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