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Ruler Drop

Catch the falling ruler. The mark you grab gives your reaction time, if you do the maths.

Physics · Class 11 · Free fall · your reaction time · 6 simulations. For JEE, NEET and your boards.

A picture of the Ruler Drop simulation

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What you'll learn

  1. Your reaction time: A ruler is a clock
  2. Make a reaction ruler: Twice the time, four times the distance
  3. The longest wait: The end of the ruler is a time limit
  4. On the Moon: Same time, smaller g
  5. 1 : 3 : 5: The odd-number rule
  6. Speed at the catch: Final speed from the fall