Multiplying Vectors: Here are three vectors in meters:?

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Multiplying Vectors: Here are three vectors in meters:?

D1= -3.0i + 3.0j + 2.0k
D2= -2.0i - 4.0j + 2.0k
D3= 2.0i + 3.0j + 1.0k

What results from (a) D1 x (D2 + D3), (b) D1 x (D2 x D3) and
(c) D1 x (D2 + D3)

2006-09-11 16:32:56 · 2 answers · asked by afchica101 1 in Science & Mathematics ➔ Physics

2 answers

(a) D' = -1j + 3k R= 11i + 9j - 9k
(b) D' = -2i + 6j +2k R = -6i + 2j - 12k

Is (c) supposed to be the same as (a)?

2006-09-11 16:54:21 · answer #1 · answered by Soscan 2 · 0⤊ 0⤋

multiply or cross product???

a vector has a magnitude and a direction. First find the magnitude by taking the square of the individual components then the square root of the sum of those components ...

Then the direction is going to have to be determined geometricly

2006-09-12 04:25:03 · answer #2 · answered by farrell_stu 4 · 0⤊ 0⤋