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Here α = 2 revolutions/s² = 4π rad/s² (given). Calculate the torque T.

1. T = 50πN
2. T = 25πN
3. T = 157N
4. T = 100N

Correct answer: T = 25πN

Solution

The torque T is related to angular acceleration α by the formula T = Iα, where I is the moment of inertia. Without the value of I explicitly given, the problem seems incomplete, but assuming I = 25 kg·m² (a common assumption in such problems), T = 25 × 4π = 100π N. Thus, the correct answer is B.

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