Physics · Rotational Motion
A circular disc of mass 20 kg and radius 1 m is rotating about an axis passing through its center and perpendicular to its plane with an angular velocity of 2 rad s-1. The rotational kinetic energy of the disc is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 120 J✓
- 275 J
- 350 J
- 4100 J
Correct answer
20 J
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