AP EAPCET 2025 - 26th May Evening Shift | Center of Mass and Collision Question 4 | Physics

A body of mass ' $m$ ' moving along a straight line collides with a stationary body of mass ' $2 m^{\prime}$. After collision if the two bodies move together with the same velocity, then the fraction of kinetic energy lost in the process is

$\frac{1}{2}$

$\frac{2}{3}$

$\frac{3}{4}$

$\frac{1}{3}$

AP EAPCET 2025 - 24th May Morning Shift

MCQ (Single Correct Answer)

-0

A disc of mass 0.2 kg is kept floating in air without falling by vertically firing bullets each of mass 0.05 kg on the disc at the rate of 10 bullets per every second. If the bullets rebound with the same speed, then the speed of each bullet is

(Acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

$2 \mathrm{~ms}^{-1}$

$10 \mathrm{~m} \mathrm{~s}^{-1}$

$20 \mathrm{~ms}^{-1}$

$1 \mathrm{~ms}^{-1}$

AP EAPCET 2025 - 24th May Morning Shift

MCQ (Single Correct Answer)

-0

A body moving along a straight line collides another body of same mass moving in the same direction with half of the velocity of the first body. If the coefficient of restitution between the two bodies is 0.5 , then the ratio of the velocities of the two bodies after collision is (Treat the collision as one dimensional)

$2: 5$

$5: 7$

$2: 3$

$3: 7$

AP EAPCET 2025 - 23rd May Evening Shift

MCQ (Single Correct Answer)

-0

The co-ordinates of the centre of mass of a uniform $L$ shaped plate of mass 3 kg shown in the figure is

AP EAPCET 2025 - 23rd May Evening Shift Physics - Center of Mass and Collision Question 7 English

$\left(\frac{5}{6} m, \frac{5}{6} m\right)$

$\left(\frac{3}{2} m, \frac{3}{2} m\right)$

$\left(\frac{1}{2} m, \frac{1}{2} m\right)$

$\left(\frac{6}{5} m, \frac{6}{5} m\right)$

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