AP EAPCET 2024 - 23th May Morning Shift | Center of Mass and Collision Question 14 | Physics

A soccer ball of mass 250 g is moving horizontally to the left with a speed $22 \mathrm{~ms}^{-1}$. This ball is kicked towards right with a velocity $30 \mathrm{~ms}^{-1}$ at an angle $53^{\circ}$ with the horizontal in upward direction. Assuming that it took 0.01 s for the collision to take place, the average force acting is $\left(\cos 53^{\circ}=\frac{3}{5}, \sin 53^{\circ}=\frac{4}{5}\right)$

1000 N

986 N

1166 N

2000 N

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

-0

A body of mass 30 kg moving with a velocity $20 \mathrm{~ms}^{-1}$ undergoes one-dimensional elastic collision with another ball of same mass moving in the opposite direction with a velocity of $30 \mathrm{~ms}^{-1}$. After collision the velocity of first and second bodies respectively are

$25 \mathrm{~ms}^{-1}, 30 \mathrm{~ms}^{-1}$

$30 \mathrm{~ms}^{-1}, 30 \mathrm{~ms}^{-1}$

$30 \mathrm{~ms}^{-1}, 20 \mathrm{~ms}^{-1}$

$40 \mathrm{~ms}^{-1}, 15 \mathrm{~ms}^{-1}$

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

-0

Two blocks of equal masses are tied with a light string passing over a massless pulley (assuming frictionless surfaces ) acceleration of centre of mass of the two blocks is $\left(g=10 \mathrm{~ms}^{-2}\right)$

AP EAPCET 2024 - 22th May Evening Shift Physics - Center of Mass and Collision Question 15 English

$\frac{5(\sqrt{3}-1)}{2}$

$\frac{5(\sqrt{3}-1)}{2 \sqrt{2}}$

$\frac{5(\sqrt{3}+1)}{2 \sqrt{2}}$

$\frac{5(\sqrt{3}-1)}{\sqrt{2}}$

AP EAPCET 2024 - 21th May Morning Shift

MCQ (Single Correct Answer)

-0

A ball falls freely from rest from a height of 6.25 m on a hard horizontal surface. If the ball reaches a heightd 81 cm after second bounce from the surface, the coefficient of restitution is

0.3

0.45

0.75

0.6

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