Kinematics Question 123
Question: The vector projection of a vector $ 3\hat{i}+4\hat{k} $ on y-axis it’s [RPMT 2004]
Options:
A) 5
B) 4
C) 3
D) Zero
Correct Answer: D As the multiple of $ \hat{j} $ in the given vector is zero therefore this vector lies in XZ plane and projection of this vector on y-axis is zero.
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