NEET UG PHYSICS MCQ: MOTION IN PLANE

1 Easy

1 of 1

Understanding +4 | -1

Magnitude of component of vector

2 \hat{i}+6 \hat{k}

along

y

-axis is

View answer and explanation

Correct option: A

Option A (0) is correct because the component of a vector along an axis is zero if the vector has no projection onto that axis. The given vector has no y-component.

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Acceleration due to gravity: The magnitudes of the two vectors

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

are a and b respectively. The vector product of

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

cannot be If

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

, then the angle between

\overrightarrow Q \,and\,\overrightarrow R

is What happens, when we multiply a vector by -2 ? Which of the following is not true? If

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

and

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

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A

and

B

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\overrightarrow{\mathrm{A}}

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)

east of north. The actual direction of the wind is