SATHEE: Kinematics Question 136

Kinematics Question 136

Question: The unit vector along $\hat{i} + \hat{j}$ it’s

Options:

A) $\hat{k}$

B) $\hat{i} + \hat{j}$

C) $\frac{\hat{i} + \hat{j}}{\sqrt{2}}$

D) $\frac{\hat{i} + \hat{j}}{2}$

Show Answer

Answer:

Correct Answer: C

Solution:

$\hat{R}$

$= \frac{\vec{R}}{| R |} = \frac{\hat{i} + \hat{j}}{\sqrt{1^{2} + 1^{2}}} = \frac{1}{\sqrt{2}} \hat{i} + \frac{1}{\sqrt{2}} \hat{j}$

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Kinematics Question 136

Question: The unit vector along i^+j^ it’s

Options:

Answer:

Solution:

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Question: The unit vector along $\hat{i} + \hat{j}$ it’s