Question

Calculate the moment of inertia of the egg having a mass of 7 kg and radius of 44 cm.

(a) .968 kgm^2

(b) 1.454 kgm^2

(c) 1.545 kgm^2

(d) 1.552 kgm^2

The question was posed to me in final exam.

This intriguing question originated from Dynamics topic in chapter Dynamics of Electrical Drives of Electric Drives

Answer 1

The correct choice is (d) 1.552 kgm^2

The best I can explain: The moment of inertia of the egg can be calculated using the formula I=∑miri^2. The mass of egg and radius is given. I=(7)×(.44)^2=1.552 kgm^2. It depends upon the orientation of the rotational axis.