If a vector \( \vec{a} \) of magnitude 50 is collinear with vector ... VIDEO
If a vector \( \vec{a} \) of magnitude 50 is collinear with vector \( \overrightarrow{\mathrm{b}}=6 \hat{\mathrm{i}}-8 \hat{\mathrm{j}}-\frac{15}{2} \hat{\mathrm{k}} \) and makes an acute angle
\( \mathrm{P} \) with positive \( z \)-axis then :
(A) \( \vec{a}=4 \vec{b} \)
(B) \( \vec{a}=-4 \vec{b} \)
(C) \( \vec{b}=4 \vec{a} \)
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