SATHEE: Kinematics Question 302

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) $- 18 \hat{i} - 13 \hat{j} + 2 \hat{k}$

Show Answer

Answer:

Correct Answer: D

Solution:

$\vec{v} = \vec{ω} \times \vec{r} = | \begin{matrix} \hat{i} & \hat{j} & \hat{k} \\ 3 & - 4 & 1 \\ 5 & - 6 & 6 \end{matrix} |$

$= - 18 \hat{i} - 13 \hat{j} + 2 \hat{k}$

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Kinematics Question 302

Question: Dot product of two mutual perpendicular vector is [Haryana CEET 2002]

Options:

Answer:

Solution:

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