The moment of inertia of a body about a given axis is 1.2 kg m 2 . Initially, the body is…
Physics · JEE Advanced · NTA Exams — Rotational Motion
The moment of inertia of a body about a given axis is 1.2 kg m2. Initially, the body is at rest. In order to produce a rotational kinetic energy of 1500 joule, an angular acceleration of 25 radian/sec2 must be applied about that axis for a duration of
- 4 seconds
- 2 seconds
- 8 seconds
- 10 seconds
Answer
(B) 2 seconds
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