TS EAMCET 2023 (Online) 13th May Morning Shift | Center of Mass and Collision Question 17 | Physics

A block of mass $M$ moving on a frictionless horizontal surface collides with a spring of spring constant $K$, as shown in the figure. If the spring compresses by a length $L$, then the maximum momentum of the block after the collision is

TS EAMCET 2023 (Online) 13th May Morning Shift Physics - Center of Mass and Collision Question 13 English

zero

$\frac{M L^2}{K}$

$L \sqrt{M K}$

$\frac{K L^2}{2 M}$

TS EAMCET 2023 (Online) 13th May Morning Shift

MCQ (Single Correct Answer)

-0

A body falls freely from a height $h$ on a fixed horizontal plane and rebounds. If $e$ is the coefficient of restitution, the total distance travelled before it comes to rest is

$h\left[\frac{1+e^2}{1-e^2}\right]$

$h\left[\frac{1-e^2}{1+e^2}\right]$

$\frac{h}{2}\left[\frac{1-e^2}{1+e^2}\right]$

$\frac{h}{2}\left[\frac{1+e^2}{1-e^2}\right]$

TS EAMCET 2023 (Online) 13th May Morning Shift

MCQ (Single Correct Answer)

-0

Two blocks of equal masses are tied to the ends of a light string. The string passes over a mass less pulley fixed on frictionless surface as shown in the figure. The acceleration of the centre of mass of the blocks is ( $g=$ acceleration due to gravity)

TS EAMCET 2023 (Online) 13th May Morning Shift Physics - Center of Mass and Collision Question 12 English

$\left(\frac{\sqrt{3}-1}{4 \sqrt{2}}\right) g$

$\left(\frac{\sqrt{3}+1}{4 \sqrt{2}}\right) g$

$\left(\frac{\sqrt{3}-1}{2 \sqrt{2}}\right) g$

$\left(\frac{\sqrt{3}+1}{2 \sqrt{2}}\right) g$

TS EAMCET 2023 (Online) 12th May Morning Shift

MCQ (Single Correct Answer)

-0

A system consists of two particles of masses $m_1$ and $m_2$. If the particle of mass $m_1$ is moved towards the centre of mass through a distance $d$, then the distance the second particle should be moved, so as to keep the centre of mass at the same position is

$-\frac{m_2}{m_1} d$

$\frac{m_2}{m_1+m_2} d$

$-\frac{m_1}{m_2} d$

$\frac{m_1}{m_2} d$

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