Distance between two vectors

  • #1

Homework Statement



You are camping with two friends, Joe and Karl. Since all three of you like your privacy, you don't pitch your tents close together. Joe's tent is 24.0 m from yours, in the direction 23.0 degrees north of east. Karl's tent is 43.5 m from yours, in the direction 41.0 degrees south of east.

What is the distance between Karl's tent and Joe's tent?

Homework Equations



Karl's tent dk = 32.83{i) -28.54{j}
Joe's tent dj = 22.09{i}+ 9.38{j}

The Attempt at a Solution



Karl's tent dk = 32.83{i) -28.54{j}
Joe's tent dj = 22.09{i}+ 9.38{j}

dkj=dkjx{i}+dkjy{j}

9.38 + dkjy=-28.54
22.09{i}+dkjx=32.83

22.09-32.83= -10.74
9.38+28.54 = 37.92

(10.74)2+(37.92)2 and then square root = 39.41m.

Is that right. Thanks!
 
Last edited:

Answers and Replies

  • #2
lewando
Homework Helper
Gold Member
1,356
139
Final answer looks too big. Assuming your location is at the origin, dj looks fine, but shouldn't dk have a negative j component?
 
  • #3
Final answer looks too big. Assuming your location is at the origin, dj looks fine, but shouldn't dk have a negative j component?

Ok, I changed it to 39.41 meters.
 
Last edited:
  • #4
lewando
Homework Helper
Gold Member
1,356
139
Much better :smile: !
 
  • #5
Last edited:

Related Threads on Distance between two vectors

Replies
1
Views
4K
  • Last Post
Replies
5
Views
7K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
3
Views
5K
  • Last Post
Replies
2
Views
8K
  • Last Post
Replies
5
Views
10K
  • Last Post
Replies
9
Views
9K
Replies
1
Views
810
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
2
Views
2K
Top