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World 6 · Cutting Through the Air · 13 min · PRO

Drag grows with speed squared

The force that dominates at speed

PRO · Engine Room

World 6: Cutting Through the Air is part of PRO

The first world of Engine Room is free. PRO opens the other 20 lessons in 6 worlds — simulations, quizzes and all.

  • Shape matters
  • Drag, rolling resistance and your fuel bill
  • Follow the energy: a petrol car
  • Follow the energy: an electric car
  • Where does the electricity come from?
PRO includes
  • All 60 labs — every world, every lesson
  • Practice exams and certificates

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly

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