"I have attached a lesson material (developed by a colleague) which I reviewed a few years back. Hope you find the material of some use. Ch on friction can be found on pages 7 and 8 of the pdf doc. There are plenty other resources such as this…"
"well the co efficient friction is found empirically.
in earth quake friction plays a big role to stop propagation of earthquake.as finding co efficient friction is difficult and hence predicting effect of earthquake.