The projection of the vector i+j+k along the vector j is - Vidyadip

MCQ

The projection of the vector $i+j+k$ along the vector $j$ is

✓
$1$
B
$0$
C
$2$
D
$-1$

✓

Answer

Correct option: A.

$1$

a
(a) Projection of the vector $i + j + k$ along vector

$j = \frac{{(i + j + k)\,.\,j}}{{|j|}} = \frac{1}{1} = 1.$

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