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8. A round tube weighs 30 kg. If the tube is stood on end, it pushes down on the floor with a pressure of 20 N/m². How many square inches is the end of the tube​

Sagot :

Answer:

22785 square inches

Explanation:

  • As the mass of the tube is 30kg, therefore it is exerting a force of 30g N(30g = 30 × 9.8 = 294)
  • So the force is 294 N.
  • Pressure is 20 N/m², as given.
  • As we know Pressure is equal to the force exerted per unit area (P=F/A).
  • Therefore, A=F/P

        A = 294 ÷ 20 = 14.7 m²

  • As 1 m² = 1550 square inches. Therefore, 14.7 m² = 14.7 × 1550 square inches = 22785 square inches

If you want to know something more about pressure, force, and area, you can refer to this link:

https://brainly.in/question/1440079