Question

Define angular momentum & derive relation for angular momentum in terms of
Cartesian coordinate system & polar coordinate system using a well labelled diagram.

Answer 1

At any given instant of time, the frame of reference with respect to which the position of the object is described in terms of position coordinates (x, y, z) is called Cartesian coordinate system.

the polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by a distance from a reference point and an angle from a reference direction. The reference point is called the pole, and the ray from the pole in the reference direction is the polar axis.

hope it helps...

be happy