Calculate the moment of inertia of the disc having a mass of 54 kg and diameter of 91 cm.(a) 5.512 kgm^2(b) 5.589 kgm^2(c) 5.487 kgm^2(d) 5.018 kgm^2I have been asked this question in an online quiz.My query is from DC Motors in section Characteristics of DC & AC Motors of Electric Drives

Calculate the moment of inertia of the disc having a mass of 54 kg and

1.	Calculate the moment of inertia of the disc having a mass of 54 kg and diameter of 91 cm.(a) 5.512 kgm^2(b) 5.589 kgm^2(c) 5.487 kgm^2(d) 5.018 kgm^2I have been asked this question in an online quiz.My query is from DC Motors in section Characteristics of DC & AC Motors of Electric Drives
Answer» Correct option is (b) 5.589 kgm^2 The explanation: The moment of INERTIA of the disc can be calculated using the formula I=mr^2×.5. The mass of the disc and diameter is GIVEN. I=(54)×.5×(.455)^2=5.589 kgm^2. It depends upon the orientation of the ROTATIONAL AXIS.

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Calculate the moment of inertia of the disc having a mass of 54 kg and diameter of 91 cm.(a) 5.512 kgm^2(b) 5.589 kgm^2(c) 5.487 kgm^2(d) 5.018 kgm^2I have been asked this question in an online quiz.My query is from DC Motors in section Characteristics of DC & AC Motors of Electric Drives

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