VECTOR ALGEBRA

If

 $\overrightarrow{a}\overrightarrow{,b,}\overrightarrow{c}$  are three unit vectors such that  $\overrightarrow{a}$    is perpendicular to  $\overrightarrow{b}$   , and is parallel to  $\overrightarrow{c}$   then  $\overrightarrow{a}\left(\overrightarrow{b}\times\overrightarrow{c}\right)$   is equal to

•  $\overrightarrow{a}$  

•  $\overrightarrow{b}$  

•  $\overrightarrow{c}$  

•  $\overrightarrow{0}$  

What of the next options are scalars?

• Meters

• Velocity

• Time

• Mass

• Acceleration

Tags

CCSS.HSN.VM.A.1

What of the next options are vectors?

• Time

• Acceleration

• Area

• Displacements

• Mass

Tags

CCSS.HSN.VM.A.1

What is the vector main characteristic?

• It has a line

• It has an arrow heat

• It has magnitud and direction

• It has pawer

Tags

CCSS.HSN.VM.A.1

How does a vector in one dimension look like?

• It is a point

• It is a line

• It is a X & Y

• It is X, Y & Z

Tags

CCSS.HSN.VM.A.1

. $find\ the\ magnitude\ of\ \ 2i\ +3j-\sqrt{3}k$  

•  $\sqrt{22}$  

• 10

• 4

• 16

Tags

CCSS.HSN.VM.A.1

Find the resultant vector.

• <9, 15>

• <7, 17>

• <15, 9>

• <11, 13>

How do you know if two vectors are orthogonal?

• Their sum is 0.
• The dot product is 1.
• The angle between them is 0°.
• The dot product is 0.

 $Find\ the\ angle\ between\ the\ vectors\ i-j+k\ and\ -i+j+2k$  

• 0

• 49.76°

• 90°

• 92.57°

 $Find\ the\ direction\ \cos ine\ of\ \ 3i-2j+3k$  Fin

•  $\frac{3}{22},\frac{-2}{22},\frac{3}{22}$  

•  $\frac{3}{\sqrt{22}},\frac{2}{\sqrt{22}},\frac{3}{\sqrt{22}}$  

•  $\frac{3}{\sqrt{22}},\frac{-2}{\sqrt{22}},\frac{3}{\sqrt{22}}$  

•  $\frac{-3}{\sqrt{22}},\frac{-2}{\sqrt{22}},\frac{3}{\sqrt{22}}$