Finding Magnitude and Direction of Vector Addition and Subtraction

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SUMMARY

The discussion focuses on vector addition and subtraction, specifically for vector A with a magnitude of 81 units pointing due west and vector B, also with a magnitude of 81 units, pointing due south. The resultant vector A + B has a magnitude of 114.6 units and points at an angle of 225 degrees relative to due west. Conversely, the resultant vector A - B has a magnitude of 0 units, indicating that the vectors cancel each other out completely.

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  • Familiarity with Cartesian coordinate systems
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luckylayla
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vector A has a magnitude of 81 units and points due west, while vector B has the same magnitude and points due south. Find the magnitude and direction of (a) A + B and (b) A - B . Specify the directions relative to due west.

(a) Magnitude and direction of A + B = and o
(b) Magnitude and direction of A - B = and o
Hi folks any idea?
 
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Try drawing it out firstly and what does A+B mean in vector notation? (How do you 'add' two vectors?)
 

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