Question
Show that angular momentum of body revolving about an axis is twice the mass of arial velocity.
Solution
Let a particle of mass m be revolving in XY plane about Z axis.
Let, at any instant t particle be at A and at t + ∆t particle be at B.
Let the radius vector sweep the area ∆A in time ∆t.
Let, at any instant t particle be at A and at t + ∆t particle be at B.
Let the radius vector sweep the area ∆A in time ∆t.
