• Support PF! Buy your school textbooks, materials and every day products Here!

Proving a 2:1 ratio triangle having a Zero Vector

  • Thread starter aeromat
  • Start date
  • #1
114
0

Homework Statement


I need help once again with this question below:
62-17-p292.png


Thanks,
aeromat



The Attempt at a Solution



This is what I have so far:
GP = GQ + QP
GQ = GP + PQ
GR = GP + PR

GP + GQ + GR = GQ + QP[-] + PQ[+] + GP + PR + GP
GP + GQ + GR = GQ + 2GP + PR

I am stuck now. I took the approach of taking GP + GQ + GR individually and finding their vector components.
 

Answers and Replies

  • #2
311
1
you haven't used the 2:1 ratio fact anywhere. try using that.

hint: name the mid points of each side A,B,C. And try to use GA, GB, GC in your equations.
 

Related Threads on Proving a 2:1 ratio triangle having a Zero Vector

Replies
12
Views
3K
  • Last Post
Replies
7
Views
731
Replies
1
Views
1K
Replies
1
Views
2K
Replies
12
Views
1K
Replies
20
Views
2K
Replies
3
Views
871
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
2
Views
2K
Top