TEST ON VECTORS

Vectors have both _____________ and direction.

When adding vectors graphically, the magnitude of the resultant vector is represented

• the length of the vector drawn

• the arrow head of the vector drawn

• both of the above

• none of the above

What is the sum of a vector addition problem called?

• components

• scalar

• resultant

• magnitude

Which are equivalent vectors?

• u and -u

• u and a

• u and v

• u and b

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〉

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〉

Given u = <3, 7>, find 2u

• <21, 2>

• <6, 26>

• <6, 14>

• 23

Find the magnitude of the vector <2, -3>.

• √11
• 13
• √-4
• √13

Which of the following statement is true in determining the resultant of two or more vectors acting together in the same direction?

• Add the given vectors and take the common direction

• Subtract the given vectors and take the common direction

• Get the product of the given vectors and take the two direction

• Add the given vectors and take the two direction