Set the initial velocity and launch angle, then click Launch! Watch the projectile follow its parabolic path. 45° gives maximum range on flat ground.
Launch Settings
Configure your projectile
📚 Try These
🎬 Trajectory Simulation
📊 Motion Graphs
📝 Projectile Motion Formulas
Understanding Projectile Motion
Projectile motion is the motion of an object thrown or projected into the air, subject only to gravity. The path of a projectile is called its trajectory, and it always forms a parabola.
Key Concepts
- Independence of motion: Horizontal and vertical motions are independent of each other
- Horizontal motion: Constant velocity (no acceleration) - x = v₀cos(θ) × t
- Vertical motion: Accelerated by gravity - y = v₀sin(θ) × t - ½gt²
- Optimal angle: 45° gives maximum range on flat ground
- Complementary angles: Angles like 30° and 60° give the same range
The Physics Behind It
When you launch a projectile at angle θ with initial velocity v₀, the velocity has two components:
- Horizontal component: v₀ₓ = v₀ × cos(θ) - stays constant throughout flight
- Vertical component: v₀ᵧ = v₀ × sin(θ) - decreases going up, increases coming down
Why 45° is Optimal
The range formula R = v₀²sin(2θ)/g is maximized when sin(2θ) = 1, which occurs at 2θ = 90°, or θ = 45°. At this angle, you get the perfect balance between horizontal distance and time in the air.
Real-World Applications
- Sports: Soccer kicks, basketball shots, golf drives, javelin throws
- Military: Artillery trajectories, missile paths
- Engineering: Water fountains, sprinkler systems
- Space: Rocket launches, satellite deployments