Im struggeling with understanding this task. Yeah I'm an amateur.. My English is not that good as well. My main problem is understanding where the share forces act on this dam, if its through the centre of pressure, or if its at the bottom of the dam. Now I have calculated the share forces acting on the bottom of the dam, as I have assumed this is the only place it is supported. Can anyone help me with this, or does anyone have some point of view.