hi guys, i have a problem with mechanical principles. ill write the question here but ill also attatch a word doc with a drawing included. i understand that when posting such questions, an attempt at solution is also expected. thats a bit difficult as i cant seem to fathom where to start with it. so i was wondering if i could get a little help with method rather than numbers and answers?? after all, im gonna get more like this so best understand it too :D anyway here goes; Water is retained in a 1m wide rectangular section channel by a sluice gate that can pivot about its base, as shown below. Determine the tension in the horizontal retaining cable attached to the top of the gate when the depth of the water in the channel is 1.5m the density of water is 1000kgm. any help with this guys would be greatly appreciated!!