1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Action and reaction can never balance out because

A
They are unequal in magnitudes
B
Though they are equal in magnitude and opposite in direction they act on different bodies.
C
They are equal in magnitude but not opposite always.
D
They are unequal in magnitudes even though opposite in direction
2
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

A cube bar slides thrice the time with friction than that without friction when it slides on an inclined plane of inclination $$45^{\circ}$$. The coefficient of friction between the block and the surface is

A
1
B
0.66
C
0.88
D
0.5
3
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

A man standing in a truck moving with constant velocity throws a ball vertically into air, ball falls

A
Outside the truck
B
In the truck behind the boy
C
In the truck ahead of the boy
D
Exactly in the hand of the boy
4
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

A stone of mass $$2 \mathrm{~kg}$$ is hung from the ceiling of the room using two strings. If the strings make an angle $$60^{\circ}$$ and $$30^{\circ}$$ respectively with the horizontal surface of the roof then the tension on the longer string is : $$g=10 \mathrm{~ms}^{-2}$$

A
$$\frac{\sqrt{3}}{2} \mathrm{~N}$$
B
$$10 \sqrt{3} \mathrm{~N}$$
C
$$10 \mathrm{~N}$$
D
$$\sqrt{3} \mathrm{~N}$$
COMEDK Subjects
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