1
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

The angular acceleration of a body, moving along the circumference of a circle, is :

A
along the radius towards the centre
B
along the tangent to its position
C
along the axis of rotation
D
along the radius, away from centre
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

An energy of 484 J is spent in increasing the speed of a flywheel from 60 rpm to 360 rpm. The moment of inertia of the flywheel is :

A
0.07 kg-m2
B
0.7 kg-m2
C
3.22 kg-m2
D
30.8 kg-m2
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

The angular speed of a fly wheel moving with uniform angular acceleration changes from 1200 rpm to 3120 rpm in 16 seconds. The angular acceleration in rad/s2 is

A
2$$\pi$$
B
4$$\pi$$
C
12$$\pi$$
D
104$$\pi$$
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is

A
2 : 1
B
$$\sqrt2$$ : 1
C
4 : 1
D
1 : $$\sqrt2$$
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