Question

Is a =ai+0.5j+0.5k is a unit vector find the valtue of a?

Answer 1

Step-by-step explanation:

do the square of value of following vector

i.e a^2+0.5^2+0.5^2=1

here =1 bcoz total of unit vector is always 1

now solve

a^2 + 0.25+0.25=1

a^2+0.50 =1

a^2=1-0.50

a^2=0.50

so a=√0.50