COMEDK 2025 Evening Shift | Motion Question 2 | Physics

A boy is running along a straight horizontal road with a constant speed $5 \mathrm{~ms}^{-1}$. While running he throws a stone with a velocity $30 \mathrm{~ms}^{-1}$ at an angle $60^{\circ}$ with the horizontal. Then the time of flight of the stone is: (Given $g=10 \mathrm{~ms}^{-2}$ )

$3 \sqrt{2}$

$\frac{\sqrt{3}}{2}$

$4 \sqrt{3}$

$3 \sqrt{3}$

COMEDK 2025 Afternoon Shift

MCQ (Single Correct Answer)

-0

A car, starting from rest, accelerates at the rate (f) through a distance ( $S$ ), then continues at constant speed for some time $(t)$ and then decelerates at the rate $\frac{f}{2}$ to come to rest. If the total distance is $5 S$, then

$S=\frac{1}{4} f t^2$

$S=\frac{1}{2} f t^2$

$S=4 f t^2$

$S=2 f t^2$

COMEDK 2025 Afternoon Shift

MCQ (Single Correct Answer)

-0

A gun is used to fire a bullet at an angle of $30^{\circ}$ and at $60^{\circ}$ respectively. The ratios of heights and Ranges reached by the bullet are

$1: 1,1: 1$

$1: 3,1: 1$

$3: 1,1: 1$

$1: 1,3: 1$

COMEDK 2025 Morning Shift

MCQ (Single Correct Answer)

-0

A particle moves towards west with a velocity of $10 \mathrm{~ms}^{-1}$. After 10s its direction changes towards south and it moves with the same velocity. The average acceleration of the particle is:

$2 \sqrt{2} m s^{-2} N E$

$\left(\frac{1}{\sqrt{2}}\right) m s^{-2} S E$

$2 m s^{-2} N E$

$\sqrt{2} m s^{-2} S E$

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