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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)150mmDom |
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Answer» T 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=mgF=5kg×10 NF=5000×10 NF=50000N⇝CASE 1:-When we TAKE 10 cm ×5 cm as baseThen the area ,A=10×5cm²=50cm² or 0.5m²Now 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 0.75m²Now 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 m²Now Pressure, P=50000/1.5 Pa P=33333.33 Pa (approx.) |
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