Free Fall Calculator
Works out a fall time and landing speed.
Answer
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Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
Fall time —
Speed at the end —
Distance fallen —
Assumes —
The formula
h = v₀t + ½gt² v = v₀ + gt v² = v₀² + 2gh
Mass does not appear: without air resistance everything falls at the same rate.
What to watch out for
To estimate the depth of a well, time a dropped stone and use the fall time option. The sound coming back adds a little to the time.
Frequently Asked Questions
How long does it take to fall 20 m?
2.02 s, landing at 19.8 m/s.
Do heavy objects fall faster?
Not without air. With air, a heavier object of the same size reaches a higher terminal velocity, so it does land sooner over long drops.