General Question
How can I solve the value of F?
We assume a prism is stuck into the soil which is homogeneous. The density of soil is p. Other parameters of soil are constant, and which can be displaced by letters. The initial depth was 1 m，then the depth is 3 m by the force F. F is applied on the center of the prism. The length of prism is L,the weitht is G.
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