Question

Select the correct answer. Vector u has its initial point at (15, 22) and its terminal point at (5, -4). Vector v points in a direction opposite that of u, and its magnitude is twice the magnitude of u. What is the component form of v?

Answer 1

`U=(15,22)~~,~~(5,-4)\hspace{5em}(-4-22~~,~~5-15)\stackrel{ \textit{component form of U} }{\implies (-10~~,~-26)} \\\\\\ ~~ \hspace{15em}-2(-10~~,~-26)\implies \stackrel{ \textit{component form of V} }{ (20~~,~~52)}`

Check the picture below.