The physics
Dropped from rest, an object gains the same amount of speed every second, so its speed after t seconds is v = g·t. The distance adds up all the speed gained so far, so it grows with the square of the time: d = ½·g·t².
How far does an object fall in 5 seconds?
Answer: distance fallen = 122.58 m (speed 49.03 m/s, speed 176.5 km/h).
What we know
- Fall time: 5 s
From rest, no air resistance — a real skydiver is already slowed by drag by then.
Step by step
- Given
- t = 5 s
- Formula
- d = ½·g·t²
- Substitute
- d = ½ × 9.80665 × 5²
- Result
- d = 122.58 m
All results
| Distance fallen | 122.58 m |
|---|---|
| Speed | 49.03 m/s |
| Speed | 176.5 km/h |
Open the free fall from time calculator with these numbers → and change any of them.