× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Science-Related Homework Help Physics
New Topic  
Firedancer51 Firedancer51
wrote...
Posts: 27
Rep: 0 0
11 years ago
maybe use arccos/dot product and arcsin cross product  related to the angle.
Read 464 times
2 Replies

Related Topics

Replies
wrote...
#1
11 years ago
Without a basis, there is not enough information.

Even if you had enough information to place one vector, the other vector could lie anywhere in a cone around the first vector, while still meeting your "magnitude, angle" criteria.

If you assume the first vector is co-axial with the x axis, you'd still need 2 angles to fix the second vector in space to a unique solution.
wrote...
#2
11 years ago
The problem is indeterminate. Consider any two vectors in 3D of given fixed magnitudes and given angle between them. Rotate the pair rigidly (imagine them glued together to form one rigid structure). Their magnitude wouldn't change under this rotation, nor would the angle between them. However, their x-, y-, and y- components would change. You would end up with different vectors! More information is needed to make the problem determinate.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1333 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 804
  
 1962
  
 281