Question

# If the vectors $$\overrightarrow { k }$$ and $$\overrightarrow { A }$$ are parallel to each other, then what is $$k\overrightarrow { k } \times \overrightarrow { A }$$ equal to?

A
k2A
B
0
C
k2A
D
A

Solution

## The correct option is A $${ k }^{ 2 }\overrightarrow { A }$$Here, the left $$k$$ in the equation is a scalar Now, Vector Product $$k\vec{k}$$ x$$\vec{A}=k.\vec{k}.\vec{A}.sin\theta=|k^2|\vec{A}.sin\theta$$ and since, these lines are Parallel $$\theta=0\Rightarrow sin\theta=1$$$$|k^2|\vec{A}.sin\theta=|k^2|\vec{A}=k^2\vec{A}$$ Therefore, Answer is $$A$$Mathematics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More