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Terminal Drop

Drop balls and bubbles in oil. Find the steady speed they settle at.

Physics · Class 11 · Stokes' law and terminal speed · 6 simulations. For JEE, NEET and your boards.

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What you'll learn

  1. Steady speed: Terminal speed: the forces balance
  2. Drag at steady speed: At the steady speed, the forces add to zero
  3. Drop it in: Enter at the terminal speed
  4. Bubble rises: A bubble: buoyancy against drag
  5. Twice as wide: The terminal speed goes as r²
  6. Drops merge: Merged drops: same water, bigger radius