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Home > Science > Vectors A and B have equal magnitudes of 4.98. If the sum of A and B is the vector 6.34j, determine the angle between A and B.

Vectors A and B have equal magnitudes of 4.98. If the sum of A and B is the vector 6.34j, determine the angle between A and B.

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wilfred_cho | 00:51 Tue 21st Sep 2010 | Science
3 Answers
It is not 101° , -101° , 79.1° and -79.1° .
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nightmare
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Why do you state it is not one of those values ?
Using the cosine rule, it is fairly straightforward to determine the angle between them to be approx. 101°
11:50 Tue 21st Sep 2010
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Avatar Image nightmare
Why do you state it is not one of those values ?
Using the cosine rule, it is fairly straightforward to determine the angle between them to be approx. 101°
11:50 Tue 21st Sep 2010
Avatar Image vascop
I agree with nightmare, it's approx 101 degrees. Details supplied on request.
15:41 Tue 21st Sep 2010
Avatar Image wilfred_cho
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yea sorry guys. 101 deg is the correct one. my bad.
22:03 Tue 21st Sep 2010

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Vectors A and B have equal magnitudes of 4.98. If the sum of A and B is the vector 6.34j, determine the angle between A and B.

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