The surface can only withstand a pressure Face A (50cm × 30cm) and Face C (50cm × 15cm) as the surface can only withstand a pressure of 0.25 N/cm³.
<h3>What is pressure?</h3>
The physical force used to apply pressure to an object is defined as such. Per square inch of an object, a force is applied perpendicularly to its surface. For pressure, the fundamental formula is F/A. (Force per unit area). The Pascal is the unit of pressure (Pa).
The four different types of pressure are absolute, atmospheric, differential, and gauge pressure. Have you ever noticed that when you use a straw to drink something, the air actually gets suked out? In reality, you're applying "Pressure" as you drink the beverage.
A box has the dimensions of 50 cm × 30 cm × 15 cm
Let each face be A, B and C
The weight of the box = 150 N
Formula for pressure is
P = F/A
To find out which face of the box can withstand a pressure of 0.25 N/cm
we need find the area of each face and find its pleasure
Face A = 50 cm × 30 cm
Area A = l × b
= 50 × 30
= 1500 cm²
Pressure A = 150/1500
= 0.1 N/cm³
0.25 > 0.1
The surface can definitively withstand the pressure of Face A
Face B = 30 cm × 15 cm
Area A = l × b
= 30 × 15
= 450 cm²
Pressure A = 150/450
= 0.3 N/cm³
0.25 < 0.3
The surface could not withstand the pressure of Face B
Face C = 50 cm × 15 cm
Area A = l × b
= 50 × 15
= 750 cm²
Pressure A = 150/750
= 0.2 N/cm³
0.25 > 0.2
The surface can definitively withstand the pressure of Face C
Thus, The surface can only withstand a pressure Face A (50cm × 30cm) and Face C (50cm × 15cm) as the surface can only withstand a pressure of 0.25 N/cm³.
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= Gravitational force
= mass of 1st body
= mass of 2nd body