1
MHT CET 2026 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0
Two particles of masses $2$ g and $4$ g are situated at the opposite ends, A and B of a wooden bar respectively. Let $l(AB) = 9$ cm. The center of mass of the system will be
A
$6$ cm from B.
B
$3$ cm from A.
C
$2$ cm from B.
D
$6$ cm from A.
2
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Three rods of same mass are placed as shown in figure. The co-ordinates of centre of mass of the system are

MHT CET 2025 5th May Evening Shift Physics - Center of Mass and Collision Question 1 English
A

$\left(\frac{\mathrm{a}}{3}, \frac{\mathrm{a}}{3}\right)$

B

$\left(a, \frac{a}{2}\right)$

C

$\left(2 a \frac{a}{2}\right)$

D

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

3
MHT CET 2025 26th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

A sphere of mass ' $m$ ', moving with velocity ' $3 u$ ' collides head-on with another identical sphere at rest. If ' $e$ ' is coefficient of restitution then what will be the ratio of velocity of the second sphere to that of first sphere after collision?

A
$\frac{1-\mathrm{e}}{1+\mathrm{e}}$
B
$\frac{1+\mathrm{e}}{1-\mathrm{e}}$
C
$\frac{e+1}{e-1}$
D
$\frac{e-1}{e+1}$
4
MHT CET 2025 25th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

An object of mass ' $m$ ' moving with velocity ' $u$ ' collides with another stationary object of mass ' $M$ ' and stops just after the collision. The coefficient of restitution is

A
$\frac{\mathrm{m}}{\mathrm{M}+\mathrm{m}}$
B
$\frac{M-m}{M+m}$
C
$\frac{\mathrm{m}}{\mathrm{M}}$
D
1

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