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Free-Fall Time and Impact Speed — result sheet
Drop time and impact velocity for a height with no air resistance.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: t = sqrt(2h/g); v = g*t with g = 9.80 m/s^2.
Starting from rest, distance grows with the square of time, so quadrupling height only doubles fall time. Vacuum model: real falls with drag take longer.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Drop height — m; minimum 1.0E-6; maximum 1000000000
Worked example
| Input | Value |
|---|---|
| Drop height | 20 |
Fall time 2.02 s; impact speed 19.80 m/s.
Assumptions and limits
- Released from rest; no air resistance.
- g = 9.80 m/s^2 constant; height positive in meters.
- Classical speeds.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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