Question

An iron box of dimension 10 cm x 5cm * 15 cm is kept on the horizontal surface in the position shown in figure. If its mass is 5 kg then find the pressure
exerted by it on the surface (value of g = 10 m/s2)
150mm
Dom​

Answer 1

⌦CORRECT QUESTION:-

•An iron box of dimension 10 cm x 5cm×15 cm is kept on the horizontal surface in the position shown in figure. If its mass is 5 kg then find the pressure exerted by it on the surface (value of g = 10 m/s2)

⌦FORMULA REQUIRED :-

•F=mg

•P=F/A

⌦CALCULATION:-

Let ⇸F=Force

⇸P=pressure

⇸A=area

⇸m=mass of body

⇸g=acceleration

We know that,

F=mg

F=5kg×10 N

F=5000×10 N

F=50000N

⇝CASE 1:-

When we take 10 cm ×5 cm as base

Then the area ,A=10×5cm²=50cm² or 0.5m²

Now Pressure, P=F/A

P=50000/0.5 Pa

P=100000 Pa

⇝Case 2:-

When we take 5cm×15cm as base

Then the area, A=5×15cm²=75 cm² or 0.75m²

Now Pressure, P=50000/0.75 Pa

P=66666.66 Pa (approx.)

⇝Case 3:-

When we take 10cm ×15cm as a base

Then the area ,A=10×15cm²=150cm² or 1.5 m²

Now Pressure, P=50000/1.5 Pa

P=33333.33 Pa (approx.)