A brick weighing 2 kg and having dimensions 15 cm × 10 cm × 5 cm is kept on the ground in three different ways as shown alongside. When is its pressure greatest on the ground? When is it the least?
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weight = 20N
max. pressure = 20 ÷ 10x 5 = 2/5 N/cm²
min. pressure = 20 ÷ 15x 10 = 2/15 N/cm²
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