You need to show evidence of some work. Do you know what unit vectors are?omicron said:One more question.
a) The vector [tex]\displaystyle \overrightarrow{OA}[/tex] has magnitude 100 and has the same direction as [tex]\displaystyle \left(\begin{array}{cc}7\\24\end{array}\right)[/tex]. Express [tex]\displaystyle \overrightarrow{OA}[/tex] as a column vector.
b) The vector [tex]\displaystyle \overrightarrow{OB}[/tex] is [tex]\displaystyle \left(\begin{array}{cc}24\\99\end{array}\right)[/tex]. Obtain the unit vector in the direction of [tex]\displaystyle \overrightarrow{AB}[/tex].
First of all, find the magnitude of the vector [tex]\displaystyle \left(\begin{array}{cc}7\\24\end{array}\right)[/tex]. What is it?omicron said:One more question.
a) The vector [tex]\displaystyle \overrightarrow{OA}[/tex] has magnitude 100 and has the same direction as [tex]\displaystyle \left(\begin{array}{cc}7\\24\end{array}\right)[/tex]. Express [tex]\displaystyle \overrightarrow{OA}[/tex] as a column vector.
Do you know how to calculate the vector [tex]\displaystyle \overrightarrow{AB}[/tex]? (Hint: use information from a)b) The vector [tex]\displaystyle \overrightarrow{OB}[/tex] is [tex]\displaystyle \left(\begin{array}{cc}24\\99\end{array}\right)[/tex]. Obtain the unit vector in the direction of [tex]\displaystyle \overrightarrow{AB}[/tex].