Kinematics Question 302
Question: Dot product of two mutual perpendicular vector is [Haryana CEET 2002]
Options:
A) $ 6\hat{i}-2\hat{j}+3\hat{k} $
B) $ 6\hat{i}-2\hat{j}+8\hat{k} $
C) $ 4\hat{i}-13\hat{j}+6\hat{k} $
D) $ -18\hat{i}-13\hat{j}+2\hat{k} $
Correct Answer: D $ \vec{v}=\vec{\omega }\times \vec{r}= \begin{vmatrix} {\hat{i}} & {\hat{j}} & {\hat{k}} \\ 3 & -4 & 1 \\ 5 & -6 & 6 \\ \end{vmatrix} $ $ =-18\hat{i}-13\hat{j}+2\hat{k} $
Show Answer
Answer:
Solution:
