Sub Day 1/16

Which statement describes a vector?

• It has magnitude but no direction
• It has direction but no magnitude
• It has both direction and magnitude
• It has constant magnitude but no
   direction

The _______ of two or more vectors is the sum of the vectors.

• components
• scalar
• resultant
• magnitude

What is the x component of the vector given in the diagram?

• 77N
• 92N
• 120N
• 60N

What is the y component of the vector given in the diagram?

• 77N
• 92N
• 120N
• 60N

Find the magnitude of the vector <5, 5>

• 0
• 10
• 25
• 7.07

Find the direction angle for the vector <-8, 3>

• 159.44°
• 200.56°
• 110.56°
• 249.44°

Given an initial point A ( 2, 4 ) and terminal point B ( -8, 7 ), find the component form of the vector AB.

• 〈-10,3〉
• 〈-6,3〉
• 〈10,11〉
• 〈-6,-3〉

Given u = <3, 7> and v =<-5, 4>, find 2v - 3u

• <21, 2>
• <-19, -13>
• <-15, 3>
• 23

Write in component form.

• <0, 4>

• <8, 2>

• <2, 8>

• <0, 2>

Given an initial point R ( -12, 4 ) and terminal point S ( 28, -17 ), find the component form of the vector RS. Hint: get it into the pointy brackets.

• 〈14,-13〉

• 〈-14,13〉

• 〈-40,-21〉

• 〈40,-21〉