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一、由于压力造成的错误例1:两长方体A和B叠放在水平地面上,A重10N,B重30N.已知A对B的压强与B对地面压强之比为3:2,则A与B底面积之比为多少?
First, due to pressure caused by mistakes Example 1: Two rectangular A and B stacked on the level of the ground, A weight 10N, B weight 30N. Know that the pressure of A to B and B to the ground pressure ratio of 3:2, then What is the ratio of A to B area?