Question 208: Centre of Mass and Rotational Motion

Question

Shown in the figure is a hollow icecream cone (it is open at the top). If its mass is M, radius of its
top, R and height, H, then its moment of inertia about its axis is :

Accepted Answer

Moment of inertia of this cone will same as
circular disk of mass (M) and radius R.
I = $${{M{R^2}} \over 2}$$

Answer

$${{M\left( {{R^2} + {H^2}} \right)} \over 3}$$

Answer

$${{M{R^2}} \over 2}$$

Answer

$${{M{R^2}} \over 3}$$

Answer

$${{M{H^2}} \over 3}$$

Centre of Mass and Rotational Motion

Shown in the figure is a hollow icecream cone (it is open at the top). If its mass is M, radius of its top, R and height, H, then its moment of inertia about its axis is :

Choose the correct answer: