A projectile is thrown in the upward direction making an angle of ${60^0}$ with the horizontal direction with a velocity of $147{\rm{m}}{{\rm{s}}^{ - 1}}$. Then the time after which its inclination with the horizontal is ${45^0}$, is

NEET UG PHYSICS MCQ: MOTION IN PLANE

1 Easy

1 of 1

Application +4 | -1

A projectile is thrown in the upward direction making an angle of

{60^0}

with the horizontal direction with a velocity of

147\mathrm{m}{\mathrm{s}^{ - 1}}

. Then the time after which its inclination with the horizontal is

{45^0}

, is

View answer and explanation

Correct option: C

5.49 s

Option C (5.49 s) is correct. It involves calculating the time when the vertical component of velocity changes such that the angle with the horizontal becomes 45 degrees.

More Questions from MOTION IN PLANE

Practice All Chapter MCQs →

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}

where

A

and

B

are the magnitudes of

\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