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# What is the magnitude (physics)? Help solve please?

Guys, please help me prepare for the test!! How do I do this?

Vector A=28m. Vector B points 20.015° east of north. Vector C points 20.015 west of north. A+B+C=0 (Hint: this is a symmetrical problem. Don't til the coordinate system).

What is the magnitude of B and C?

Thanks so much, best answer gets 10!

Ps the answer is 14.9m for both.

### 1 Answer

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- RealProLv 71 month ago
Does vector A by any chance point south???

Then the magnitudes of B and C must be equal. The cancellation of north components has it that

2 * x * cos(20.015°) = 28 m

x = 14.9 to 1 d.p.

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