Answer the following questions regarding the basic ideas of rotational motion:
PHYSICS · Multi-part · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
Answer the following questions regarding the basic ideas of rotational motion:
(a) Define moment of inertia of a rigid body about a given axis.
(b) Define radius of gyration of a body about the same axis.
(c) State the standard expressions for the moment of inertia of each of the following uniform bodies about the axis mentioned in brackets:
(i) Thin rod of length L (axis through the centre, perpendicular to the rod)
(ii) Thin rod of length L (axis through one end, perpendicular to the rod)
(iii) Thin circular ring of radius R (axis through the centre, perpendicular to the plane)
(iv) Solid disc of radius R (axis through the centre, perpendicular to the plane)
(v) Solid sphere of radius R (axis along a diameter)