Angular momentum sum

1. Apr 30, 2007

manojanand

The sum is a horizontal rod of mass m, len l is pivoted at one end so that it is free to rotate about a vertical axis...and a steady force fo F units acts at the free end, maintaining a direction perpendiculat to the rod. Wat is the work done by this force during the time tat the rod takeds to complete one turn, assuming that it starts from rest?