Calculate the mass of the ball having a moment of inertia 4.5 kgm^2 and radius of 14 cm.(a) 229.59 kg(b) 228.56 kg(c) 228.54 kg(d) 227.52 kgThe question was asked during an interview.My doubt is from DC Motors Characteristics in section Characteristics of DC & AC Motors of Electric Drives

Calculate the mass of the ball having a moment of inertia 4.5 kgm^2 an

1.	Calculate the mass of the ball having a moment of inertia 4.5 kgm^2 and radius of 14 cm.(a) 229.59 kg(b) 228.56 kg(c) 228.54 kg(d) 227.52 kgThe question was asked during an interview.My doubt is from DC Motors Characteristics in section Characteristics of DC & AC Motors of Electric Drives
Answer» Correct option is (a) 229.59 kg To EXPLAIN I would say: The moment of inertia of the ball can be calculated USING the formula I=∑miri^2. The moment of inertia of ball and radius is given. M=(4.5)÷(.14)^2 = 229.59 kg. It DEPENDS upon the ORIENTATION of the ROTATIONAL axis.

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Calculate the mass of the ball having a moment of inertia 4.5 kgm^2 and radius of 14 cm.(a) 229.59 kg(b) 228.56 kg(c) 228.54 kg(d) 227.52 kgThe question was asked during an interview.My doubt is from DC Motors Characteristics in section Characteristics of DC & AC Motors of Electric Drives

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