A wheel of mass 2 kg, having practically all the mass concentrated along the…
Physics · JEE Advanced · NTA Exams — Rotational Motion
A wheel of mass 2 kg, having practically all the mass concentrated along the circumference of a circle of radius 20 cm, is rotating on its axis with an angular velocity of 100 rad/s. The rotational kinetic energy of the wheel is:
- 4 joule
- 70 joule
- 400 joule
- 800 joule
Answer
(C) 400 joule
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