Okay, so. I'm doing a project for an environmental geology course in which I need to create a landslide hazard map. Essentially, I have a mass of rock sliding down an inclined plane. I have calculated the kinetic energy and force of the material as it moves down, as well as the final velocity as the material reaches the bottom of the inclined plane. However, my problem is assessing how far the material will travel on a flat surface beyond the inclined plane to see if a nearby village will be damaged. Friction must be taken into account. Any assistance would be greatly appreciated.