1
COMEDK 2025 Evening Shift
MCQ (Single Correct Answer)
+1
-0
The velocity - mass graph of body with constant linear momentum is represented by the graph:
A
COMEDK 2025 Evening Shift Physics - Center of Mass and Collision Question 1 English Option 1
B
COMEDK 2025 Evening Shift Physics - Center of Mass and Collision Question 1 English Option 2
C
COMEDK 2025 Evening Shift Physics - Center of Mass and Collision Question 1 English Option 3
D
COMEDK 2025 Evening Shift Physics - Center of Mass and Collision Question 1 English Option 4
2
COMEDK 2025 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0
The separation between C and O atoms in CO is 0.12 nm . The distance of C atom from the centre of mass is
A
0.1 nm
B
0.05 nm
C
0.03 nm
D
0.07 nm
3
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
A bomb of mass 20 kg at rest explodes into two pieces of masses 12 kg and 8 kg . If the velocity of 8 kg mass is $6 \mathrm{~ms}^{-1}$, then the kinetic energy of the other mass is:
A
144 J
B
64 J
C
86 J
D
96 J
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
From a circular disc of radius 2 R , a smaller circular disc is cut with radius of the larger disc as its diameter. The centre of the hole is at a distance of $R$ from the centre of the original disc. The distance of the centre of mass of the remaining portion from the centre is:
A
$\frac{R}{3}$
B
$\frac{R}{4}$
C
$\frac{R}{6}$
D
$\frac{R}{2}$
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