A brick is placed on a sandy surface in two ways: first on its widest face, and then on its narrowest face. In which case will the pressure on the sand be greater?

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A When placed on the widest face
B When placed on the narrowest face
C The pressure is the same in both cases
D It depends on the color of the brick

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Answer: B. When placed on the narrowest face

Pressure is defined as force per unit area). Since the weight (force) of the brick is the same in both cases, reducing the area (using the narrowest face) increases the pressure.

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A brick is placed on a sandy surface in two ways: first on its widest face, and then on its narrowest face. In which case will the pressure on the sand be greater?

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