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Note: This problem has dynamic elements. This means elements such as numbers and consequently the step-by-step solution and the final answer may change overtime. Therefore, there may be a difference between a problem that is published online and the same problem exported into a PDF document.
The force acting on the floor at the first pressure is .
The force acting on the floor at the second pressure is .
The force acting on the floor at the third pressure is .
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large board. Calculate the force acting on the floor under the board if the pressure under the board is equal to:
is 
.
is 
.
is 
.
