✅PRINCIPIO de ARQUÍMEDES [ 𝙞𝙙𝙚𝙖𝙡 𝙥𝙖𝙧𝙖 𝙖𝙥𝙧𝙚𝙣𝙙𝙚𝙧 😎​🫵​💯​]FÍSICA Preparatoria

Scientific concepts and nature phenomena presented

• Fluid mechanics (context: behavior of objects in liquids)
• Archimedes’ principle:
  • Any object totally or partially submerged in a fluid experiences an upward buoyant force.
  • The buoyant force magnitude equals the weight of the displaced fluid.
• Forces involved:
  • Buoyant force acts upward.
  • Weight acts downward.
• Conditions for motion/equilibrium (comparison of forces):
  • Buoyant force > weight → object floats (rises above the fluid level)
  • Buoyant force = weight → object is in equilibrium (effectively submerged / neutral float)
  • Buoyant force < weight → object sinks

• Buoyant force formula used:

  • [ F_b = \rho \, g \, V ]

  • Where:

    • ( \rho ) = fluid density (e.g., water)
    • ( g ) = gravitational acceleration
    • ( V ) = volume of displaced fluid (in the example, the cube’s volume)

Methodology / calculation steps (from the exercise)

• Given:

  • Cube side length ≈ 3 m (submerged in water)
  • ( g \approx 10 \, \text{m/s}^2 )
  • Water density ( \rho = 1000 \, \text{kg/m}^3 )

• Compute cube volume:

  • [ V = (\text{edge})^3 = 3^3 = 27 \, \text{m}^3 ]

  • Note: the subtitles show inconsistent intermediate values; they end with a final buoyant force of 270 N.

• Apply Archimedes’ formula:

  • [ F_b = \rho g V ]

• Unit reasoning:

  • The calculation yields a quantity with units of force, expressed as Newtons (N).

Researchers / sources featured

• Archimedes (principle attribution)