Question

Vectors: Let V1 = -6.2i+8.2j and V2 = 4.3j+(-4.9)j

Find |v1 + v2| and |V2-V1|

Answer 1

For this problem, I would just take the magnitude of both i and j components and then take the magnitude of both of those answers right?

Answer 2

You take each individual component, sum, find the resultant vector, and take its absolute value.

Answer 3

|v1|+|v2| not= |v1+v2| unless v1 is parallel in some way to v2

Answer 4

Yes, what he said.

Answer 5

okay so far V1, i got 10 for its magnitude, and for V2 I got 6.5 for its.

Answer 6

*for

Answer 7

those are pointless magnitudes since the sum or difference of the vectors is what we want to magnitudalfy

Answer 8

magnitificate?

Answer 9

Magnificify.

Answer 10

V1 = < -6.2, 8.2>
V2 = <4.3, -4.9>
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just add them first

or subtract as the case may be

then square add sqrt for |...|

Answer 11

ok so its sqrt((-1.9)^2+(5.3)^2) = 5.63

Answer 12

sorry that 5.3 should be a 3.3, so the answer would be 3.80