Question

If 0.5i +0.5j+ ck is a unit vector, then the value of course is.

Answer 1

Answer:

The magnitude of 0.5i +0.5j+ ck is 1.

$\sqrt{ {0.5}^{2} + {0.5}^{2} + {c}^{2} } = 1$

So

$0.25 + 0.25 + {c}^{2} = 1$

=>

${c}^{2} = 1 - 0.5 = 0.5$

=>

$c = \sqrt{0.5} = 0.7071$

So c =>0.7071. Hope it helps you.