The moment of inertia of a body about a given axis is 1.2 kg m. Initially,...

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The moment of inertia of a body about a given axis is 1.2 kg m. Initially, the body is at rest. In order to produce a rotational kinetic energy of 1500 joule, an angular acceleration of 25 radian/sec must be applied about that axis for a duration of (a) 4 seconds (c) 8 seconds (b) 2 seconds (d) 10 seconds The moment of inertia of a body about a given axis is 1.2 kg m. Initially, the body is at rest. In order to produce a rotational kinetic energy of 1500 joule, an angular acceleration of 25 radian/sec must be applied about that axis for a duration of (a) 4 seconds (c) 8 seconds (b) 2 seconds (d) 10 seconds

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