A particle of mass 0.400 kg is attached to the 100-cm mark of a meter stick of

Question:

A particle of mass 0.400 kg is attached to the 100-cm mark of a meter stick of mass 0.100 kg. The meter stick rotates on a horizontal, frictionless table with an angular speed of 4.00 rad/s. Calculate the angular momentum of the system when the stick is pivoted about an axis
(a) Perpendicular to the table through the 50.0-cm mark and
(b) Perpendicular to the table through the 0-cm mark.