Schematic defining the tangential force.
figure
posted on 2014-12-22, 02:53 authored by Li Jiang, Jingyu Li, Chao Shen, Sicong Yang, Zhangang Hanis the component force perpendicular to the wall of the gate. is the component force parallel to the wall. The integral of over time t is the tangential momentum. here in the figure is the same as in equation (1).
