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Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
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7.2 | Dynamics of Rotational Motion |
1) What is the angular momentum of a 3 kg cylinder rotating at 2 rad/s around its central axis of symmetry as shown in the figure? Take the radius of cylinder R = 40 cm and its height h = 2 m.
Correct Answer: B
2) What is the mass of a 2 m bar rotating around its centre as shown in the figure if its rotational kinetic energy is 8 J and it rotates uniformly at 0.4 rad/s?
Correct Answer: C
3) A 1.6 m bar rotates at 0.6 rot/s around its centre when a 20 N force is used horizontally as shown in the figure.
What is the power delivered by the source?
Correct Answer: A
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