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BITSAT2011PhysicsRotational MotionActual

A constant torque of 31.4 ~N - m is exerted on a pivoted wheel. If angular acceleration of wheel is 4 rad / s ², then the moment of inertia of the wheel is

Options

  1. A2.5 ~kg ~m ²
  2. B3.5 ~kg ~m ²
  3. C4.5 ~kg ~m ²
  4. D5.5 ~kg ~m ²

Correct answer

A. 2.5 ~kg ~m ²

Step-by-step solution

I= = 31.4 4 = 31.4 4 3.14 =2.5 ~kg ~m ² .

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