Question

(13) State an expression for moment of inertia of
uniform solid sphere about an axis of rotation
coinciding with its diameter.
(14) Define angular momentum of a body. Obtain as
expression for angular momentum of a night
body rotating with uniform angular velocity
State its SI unit and dimensions.​

Answer 1

Moment of Inertia and Angular momentum

Explanation:

13) Moment of inertia of solid sphere about diameter I = 0.4MR² where M is mass and R is radius. SI unit of I is kgm².

14) Angular momentum of a body about an axis is defined as product of moment of inertia about the given axis and its angular velocity.

L = Iω

where I is the moment of Inertia and ω is the angular velocity. SI unit of L is kgm²/s