Question
If, $0.5 \hat{\mathbf{i}}+0.8 \hat{\mathbf{j}}+c \hat{\mathbf{k}}$ is a unit vector, then the value of $c$ is(a) $\sqrt{0.11}$(b) $\sqrt{0.22}$(c) $\sqrt{0.33}$(d) $\sqrt{0.89}$
Step 1
5 \hat{\mathbf{i}}+0.8 \hat{\mathbf{j}}+c \hat{\mathbf{k}}$ and we know that it is a unit vector. Show more…
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Key Concepts
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Vector Analysis
Round 1
Transcript
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