NEET UG PHYSICS MCQ: MOTION IN PLANE

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Application +4 | -1

The vector that must be added to the vector

\widehat i - 3\widehat j + 2\widehat k\,and\,3\widehat i + 6\widehat j - 7\widehat k

so that the resultant vector is a unit vector along the y-axis is

View answer and explanation

Correct option: B

- 4\widehat i - 2\widehat j + 5\widehat k

Option B (

- 4\widehat i - 2\widehat j + 5\widehat k

) is correct because, when added to the given vectors, it results in a unit vector along the y-axis.

More Questions from MOTION IN PLANE

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\mathrm{\vec a}\,and\,\mathrm{\vec b}

\mathrm{\vec a}\,and\,\mathrm{\vec b}

\overrightarrow P \,\,.\,\,\overrightarrow Q = 0\,and\,\overrightarrow P \,\, \times \,\,\overrightarrow Q = 0

\overrightarrow Q \,and\,\overrightarrow R

\vec{A}=3 \hat{i}+4 \hat{j}

\vec{B}=6 \hat{i}+8 \hat{j}

A

B

\overrightarrow{\mathrm{A}}

\overrightarrow{\mathrm{B}}

{\cot ^{ - 1}}\left( 2 \right)