Quiz about Vector Review

Question 1

Find the resultant vector.

Accepted Answer

<1, 7>

Answer

<5, 3>

Answer

<7, 1>

Answer

<3, 5>

Question 2

Find the resultant vector.

Accepted Answer

<11, 13>

Answer

<9, 15>

Answer

<7, 17>

Answer

<15, 9>

Question 3

If w = <2, -5> and y = <2, 0>, find 2w + y

Accepted Answer

<6, -10>

Answer

<-10, 2>

Answer

<4, -5>

Answer

<-6, 10>

Question 4

Find the magnitude of the vector <10, -8>

Accepted Answer

12.81

Answer

2

Answer

6

Answer

18

Question 5

Find the magnitude of the vector <5, 5>

Accepted Answer

7.07

Answer

0

Answer

10

Answer

25

Question 6

Write in component form the vector that represents the movement from the initial point to the terminal point.

Accepted Answer

<8, 2>

Answer

<0, 4>

Answer

<2, 8>

Answer

<0, 2>

Question 7

Given the 3 vectors find u + v

Accepted Answer

6i + j

Answer

4i - j

Answer

3j + 4j

Answer

i + 6j

Question 8

An Arrow with a Magnitude and Direction

Accepted Answer

Vector

Answer

Scalar

Answer

Refractor

Answer

Tip to Tail

Question 9

Velocity is an example of a

Accepted Answer

Vector

Answer

Scalar

Question 10

Find the magnitude.

Accepted Answer

5

Answer

0

Answer

-5

Answer

4

Question 11

A vector has both a _____________ and a _______________.

Accepted Answer

magnitude and direction

Answer

magnitude and latitude

Answer

direction and purpose

Question 12

If a vector is in Quadrant 4, the direction can be found by:

Accepted Answer

$$ an^{-1}\left(\frac{y}{x} ight)+360$$

Answer

$$ an^{-1}=\frac{y}{x}$$

Answer

$$ an^{-1}\left(\frac{y}{x} ight)+180$$

Question 13

What direction is the angle?

Accepted Answer

north of east

Answer

east of north

Answer

south of east

Answer

west of east

Question 14

What are the components of this vector?

Accepted Answer

North and East

Answer

South and East

Answer

South and West

Answer

North and West

Question 15

John and Danny, own a strong and stubborn puppy named Dexter. It is so hard to take Dexter for a walk that they devise a scheme to use 2 leashes. If John and Danny pull with forces of 23 lbs and 27 lbs at the angles shown, how hard is Dexter pulling if the puppy holds the children at a standstill?

Accepted Answer

47.954 lbs

Answer

50 lbs

Answer

48.073 lbs

Answer

48.461 lbs

Question 16

What is the magnitude of the resulting force ?

Accepted Answer

8.082 Newtons

Answer

18.727 Newtons

Answer

20 Newtons

Answer

4 Newtons

Question 17

Find the magnitude and direction of $$\overrightarrow{P_1P_2}\ \ \ \ if\ \ initial\ point\ P_1\left(7,5\right)$$

$$and\ \ endpoint\ \ P_2\left(-2,-7\right)$$

Accepted Answer

$$\left|\left|\overrightarrow{P_1P_2} ight| ight|=15\ \ and\ \ heta=233\degree$$

Answer

$$\left|\left|\overrightarrow{P_1P_2} ight| ight|=15\ \ and\ \ heta=53\degree$$

Answer

$$\left|\left|\overrightarrow{P_1P_2} ight| ight|=15\ \ and\ \ heta=127\degree$$

Answer

$$\left|\left|\overrightarrow{P_1P_2} ight| ight|=15\ \ and\ \ heta=307\degree$$

Question 18

Find the unit vector of $$\overrightarrow{P_1P_2}\ \ \ \ if\ \ initial\ point\ P_1\left(7,5\right)$$

$$and\ \ endpoint\ \ P_2\left(-2,-7\right)$$

Accepted Answer

$$\frac{-3}{5}i\ -\frac{4}{5}j$$

Answer

$$\frac{3}{5}i\ +\frac{4}{5}j$$

Answer

$$\frac{1}{3}i\ +\frac{2}{15}j$$

Answer

$$None\ of\ these$$

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics