A vector is represented by p=3 i + j + 2 k. What is its length in the

1.	A vector is represented by p=3 i + j + 2 k. What is its length in the XY plane?a) 2b) √5c) 110d) 15
Answer» ANSWER: if you PROJECT the VECTOR on to XY plane we'll have P' = 3i+j \|P'\| = √(3²+1²) = √10 Length is √10 in XY plane.

A vector is represented by p=3 i + j + 2 k. What is its length in the XY plane?a) 2b) √5c) 110d) 15

Answer»

ANSWER:

if you PROJECT the VECTOR on to XY plane

we'll have

P' = 3i+j

|P'| = √(3²+1²) = √10

Length is √10 in XY plane.

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A vector is represented by p=3 i + j + 2 k. What is its length in the XY plane?a) 2b) √5c) 110d) 15​

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A vector is represented by p=3 i + j + 2 k. What is its length in the XY plane?a) 2b) √5c) 110d) 15