Question

A vector starts at point (5,-4) and ends at point (0, -8). What is the vertical component of the vector?

А -5
B 5
C -4
D 4​

Answer 1

Answer: 5

Explanation:

A = xˆ(2−1)+yˆ(−1−(−1))+zˆ(0−(−3)) = xˆ +zˆ3,

|A| =

√

1+9 = 3.16,

aˆ =

A

|A|

=

xˆ +zˆ3

3.16

= xˆ 0.32+zˆ 0.95.