weight of brick is 40 n its length breath and height are 20cm 10 cm and 5 cm find maximum pressure exerted on a horizontal surface
Answers
Given : weight of brick is 40 n its length breath and height are 20cm 10 cm and 5 cm
To find : maximum pressure exerted on a horizontal surface
Solution:
length breath and height are 20cm 10 cm and 5 cm
Surface area of faces are
20 * 10 = 200 cm²
20 * 5 = 100 cm²
10 * 5 = 50 cm²
Hence minimum surface area of any face = 50 cm²
= 50/10000 m²
= 1/200 m²
Pressure = Force / Area
Force = 40N
Pressure would be maximum when Surface area is minimum
Pressure = 40/ (1/200)
= 40 * 200
= 8000 N/m² or Pascal
= 8 kN/m² or kPascal
maximum pressure exerted on a horizontal surface 8 kN/m² or kPascal
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