The tank side is 0.5 x 1 .......total area 0.5
Height of tank 0.5m .... pressure at bottom is 9.81 x 0.5 x 1000 = 4905 N/m2
Pressure at top is zero ...average pressure on side is 2452.5 N/m2 **total force on side is 0.5 x 2452.5= 1226.25N**
We can regard this as pushing at the center of the face...
This force acts about the hinge at the bottom , so the clasp at the top will feel half this force ..... 613.125N
Hmmm ... not sure that's correct!!
The total force on the side is correct , but where will it act??? ...closer to the bottom .... 1/3 rd up !!!
So the force acting 1/3 from bottom is 1226.25 .... force on clasp is therefore 1/3rd of that = **408.75N** I think that's right !
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Last edited by oz93666; Jan 2nd 2019 at 08:49 PM.
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