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NEET • PHYSICS • MOTION IN PLANE

Motion in plane practice · Mixed difficulty

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301 Medium

301 of 303

Remembering +4 | -1

For angle

\ldots X \ldots

the projectile has maximum range and it is equal to ...X.... Here,

\mathrm{X}

and

\mathrm{Y}

refer to

View answer and explanation

Correct option: C

\frac{\pi}{4}

and

\frac{v_0^2}{g}

Option C (

\frac{\pi}{4}

and

\frac{v_0^2}{g}

) is correct because the maximum range is achieved at an angle of

\frac{\pi}{4}

radians (45 degrees) and the maximum range is

\frac{v_0^2}{g}

302 Medium

302 of 303

Application +4 | -1

Given

\mathrm{\vec A} = \hat i + 2\hat j - 3\hat k

. When a vector

\mathrm{\vec B}

is added to

\mathrm{\vec A}

, We get a unit vector along X=axis. Then,

\mathrm{\vec B}

View answer and explanation

Correct option: A

- 2\hat j + 3\hat k

Option A (

- 2\hat j + 3\hat k

) is correct because when added to

\vec{A}

, it results in a unit vector along the x-axis.

303 Medium

303 of 303

Analyzing +4 | -1

The plane which can be formed with the vectors

\overrightarrow a = 3\overrightarrow i - 4\overrightarrow j + 2\overrightarrow k

\overrightarrow b = 2\overrightarrow i - \overrightarrow j - 6\overrightarrow k ,\overrightarrow c = 5\overrightarrow i - \overrightarrow {5j} - 4\overrightarrow k

View answer and explanation

Correct option: B

triangle

Option B (triangle) is correct because the vectors are coplanar and can form a triangle since their sum is zero.

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Motion in plane practice · Mixed difficulty

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