Question
If a unit vector is represented by $0.5 \hat{i}+0.8 \hat{j}+c \hat{k}$ the value of $c$ is(A) 1(B) $\sqrt{0.11}$(C) $\sqrt{0.01}$(D) $0.39$
Step 1
5 \hat{i}+0.8 \hat{j}+c \hat{k}$. The magnitude of a unit vector is always 1. Therefore, we can write the equation for the magnitude of this vector as: \[0.5^2 + 0.8^2 + c^2 = 1\] Show more…
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Key Concepts
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