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December 26th, 2018, 05:00 AM   #1
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Vector

If a=3u-v,b=-u+2v and c=3u+4v
where u and v are two non-parallel vectors
1.Draw the vectors on a plane using magnitudes and slope angles
2.Express c in terms of a and b
3.determine the magnitude of the vector d=3a+2b+c.Given that u and v unit vectors inclined at 60°.
Help me....!!!!!
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December 26th, 2018, 06:32 AM   #2
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Quote:
Originally Posted by Harmeed View Post
If a=3u-v,b=-u+2v and c=3u+4v
where u and v are two non-parallel vectors
1.Draw the vectors on a plane using magnitudes and slope angles
2.Express c in terms of a and b
3.determine the magnitude of the vector d=3a+2b+c.Given that u and v unit vectors inclined at 60°.
Are you given vectors u and v in a diagram or written in component form?
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December 26th, 2018, 07:34 AM   #3
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The vector are given in component form
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December 26th, 2018, 07:36 AM   #4
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I don't know how to solve a thing in that question.
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December 26th, 2018, 10:07 AM   #5
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Quote:
Originally Posted by Harmeed View Post
The vector are given in component form
Can you disclose that given information for vectors u and v , or do we have to play a guessing game?
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December 26th, 2018, 12:07 PM   #6
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It is in the question above
a=3u-v
b=u+2v
c=3u+4v
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December 26th, 2018, 12:20 PM   #7
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Quote:
Originally Posted by Harmeed View Post
It is in the question above
a=3u-v
b=u+2v
c=3u+4v
... those are vectors a, b, and c in terms of vectors u and v.

I asked you in post #2 if you were given vectors u and v.
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December 26th, 2018, 12:33 PM   #8
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Please sir,can you solve this question?
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December 26th, 2018, 12:35 PM   #9
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They are two non parallel vector components
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December 26th, 2018, 12:37 PM   #10
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Quote:
Originally Posted by Harmeed View Post
Please sir,can you solve this question?
Can you answer skeeter's question? Are you given the vectors u and v? We have to start making assumptions if you don't have them. Begging for an answer, however politely, will not get any of us anywhere.

Without knowing what u and v are:
1. Is simply impossible.

2. We don't have a unique answer for this.

3. Can't be done until we can solve 2.

-Dan
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Last edited by topsquark; December 26th, 2018 at 12:40 PM.
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