The physics
A projectile — a thrown ball, a water jet, a long jumper — follows a parabola because gravity only pulls vertically while horizontal motion continues unchanged.
Range of a javelin thrown at 28 m/s and 35°
Answer: range = 75.12 m (max height 13.15 m, flight time 3.28 s).
What we know
- Launch speed: 28 m/s
- Launch angle: 35°
Release height and aerodynamics ignored.
Step by step
- Given
- v₀ = 28 m/s, θ = 35°
- Formula
- R = v₀² · sin(2θ) / g
- Substitute
- R = 28² × sin(2 × 35) / 9.80665
- Result
- R = 75.12 m
All results
| Range | 75.12 m |
|---|---|
| Max height | 13.15 m |
| Flight time | 3.28 s |
Open the projectile motion calculator with these numbers → and change any of them.