NEET UG PHYSICS MCQ: MOTION IN PLANE

1 Medium

1 of 1

Application +4 | -1

\frac{1}{2}\hat i + \frac{1}{2}\hat j + c\hat k

is a unit vector, then the value of

{c^2}

View answer and explanation

Correct option: C

45689

Option D (-0.5) is correct because it satisfies the condition for the given vector to be a unit vector. Note: There seems to be an error in the provided correct answer. The correct answer should be -0.5, not 45689.

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Acceleration due to gravity: The magnitudes of the two vectors

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

and

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

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\overrightarrow{\mathrm{A}}

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\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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