Question

displacement vectors of 5km north, 3km east, 2km south, and 3km west combine to a total displacement of?
3km north
13km west
0km
2km south
I think 13km west

Answer 1

Hello, you can not add vectors by just looking at the numbers. Vectors have magnitude and direction. So, you can only add North and South together, and you can also add East and West vectors together.

So, think about vectors on an x-y plane. X is positive in Quadrants 1 and 4, while it is negative in Q 2 and 3. Y is positive in Q 1 and 2 and negative in Q 3 and 4.

So, 3 km East= +3 km and 3 km West= -3 km
So, +3 -3= 0

So, the West and East vector is crossed out. The vector is in either north or south direction.

5 km North= + 5 km
2 km South= -2 km
+ 5 -2 = +3 Km
y is positive in the upper two quadrants, so your direction will be north.

3 Km North

Hope this helps!

Answer 2

LESSON 13 UNIT 1 ANSWERS <3
1. A
2. B
3. C
4. C
5. C
6. C
7. C
8. D
9. D
10. C
11.D
12. C
13 DISPLACEMENT
14 VECTOR ADDITION
15 POSITIVE
16 PROJECTILE
17 FORCE, MASS (MAKE SURE YOU PUT BOTH WITH THE ",")
18 INCREASES
19 EQUALLY
NOW YOU SHOULD HAVE PLENTY OF TIME TO DO THE REST GOOD LUCK I WISH YOU ALL WELL GRADES<3

Answer 3

Mrs. Fertain is correct!

Just that number 4 is D and 12 is D

Answer 4

Thanks. =)

Answer 5

Is this for connections academy forces and motion unit test

Answer 6

yes this is for that test im about to take it

Answer 7

Unit 1, Lesson 13 Forces and Motion Unit Test! I just took the test and these are the correct answers for 1-19! Good luck!
1. A
2. B
3. C
4. D
5. C
6. C
7. C
8. D
9. D
10. C
11.D
12. C
13 DISPLACEMENT
14 VECTOR ADDITION
15 POSITIVE
16 PROJECTILE
17 FORCE, MASS (make sure to put it as "Force,mass" and not " force, mass")
19 EQUALLY