Question

Vector vector b has x, y, and z components of 4.00, 4.00, and 2.00 units, respectively. calculate the magnitude of vector

b.

Answer 1

Good morning.

We see that
`\mathsf{\overset{\to}{b}} = \mathsf{(4.00, \ 4.00, \ 2.00)}`

The magnitude(norm, to be precise) can be calculated the following way:


`\star \ \boxed{\mathsf{\overset{\to}{a}=(x, y,z)\Rightarrow ||\overset{\to}{a}|| = √(x^2+y^2+z^2)}}`


Now the calculus is trivial:


`\mathsf{\|\overset{\to}{b} \| =√(4^2+4^2+2^2) =√(16+16+4)}\\ \\ \mathsf{\|\overset{\to}{b}\|=√(36)}\\ \\ \boxed{\mathsf{\|\overset{\to}{b}\| = 6.00 \ u}}`