A coordinate system that is often used for problems in mechanics is the spherical coordi...

A coordinate system that is often used for problems in mechanics is the spherical coordinate system, as shown. With this coordinate system, the location of a point P in three dimensions is specifie using a radial distance r where (sometimes called the azimuthal angle) where (sometimes called the polar angle) where are known, determine the direction angles for the position vector from the origin of the coordinate system to point P.