MHT CET 2024 16th May Evening Shift | Center of Mass and Collision Question 1 | Physics

Three identical metal balls each of radius ' $r$ ' are placed such that an equilateral triangle is formed when centres of three ball are joined. The centre of mass of the system is located at

centre of one of the balls.

point of intersection of medians.

line joining centres of any two balls.

on the circumference of any one of the balls.

MHT CET 2024 16th May Morning Shift

MCQ (Single Correct Answer)

-0

In case of system of two-particles of different masses, the centre of mass lies

at the mid-point of line joining the two particles.

on the line joining the two particles.

at one end of the line joining the two particles.

on the line perpendicular to the line joining the two particles.

MHT CET 2024 15th May Evening Shift

MCQ (Single Correct Answer)

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A particle of mass m collides with another stationary particle of mass $M$. The particle $m$ stops just after collision. The coefficient of restitution is

$\frac{m}{M}$

$\frac{M-m}{M+m}$

$\frac{\mathrm{m}}{\mathrm{M}+\mathrm{m}}$

MHT CET 2024 15th May Evening Shift

MCQ (Single Correct Answer)

-0

1000 small balls, each weighing 1 gram, strike one square cm of area per second with a velocity $50 \mathrm{~m} / \mathrm{s}$ in a normal direction and rebound with the same velocity. The value of pressure on the surface will be

$10^7 \mathrm{~N} / \mathrm{m}^2$

$10^6 \mathrm{~N} / \mathrm{m}^2$

$5 \times 10^6 \mathrm{~N} / \mathrm{m}^2$

$2 \times 10^6 \mathrm{~N} / \mathrm{m}^2$

MHT CET Subjects