NEET UG PHYSICS MCQ: MOTION IN PLANE

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Analyzing +4 | -1

\mathbf{A} \cdot \mathbf{B}=0

and

\mathbf{A} \times \mathbf{B}=1

, then

A

and

B

are

View answer and explanation

Correct option: A

perpendicular unit vectors

Option A (perpendicular unit vectors) is correct because the dot product being 0 implies perpendicularity, and the cross product being 1 implies the magnitudes are 1.

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

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

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

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\overrightarrow Q \,and\,\overrightarrow R

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and

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and

\overrightarrow{\mathrm{B}}

The wind appears to blow from the north to a man moving in the north-east direction. When he doubles his velocity the wind appears to move in the direction

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

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