Speed and Velocity Simulator

Simple physics simulator showing the difference between speed and velocity

Physics Made Simple

Speed = How fast something moves

Velocity = Speed + Direction

Speedometer: Shows 60 mph (speed only)

GPS: Shows 60 mph North (velocity)

In this race:

  • Both cars move EAST (same direction)
  • Green car starts immediately
  • Orange car starts 3 seconds later

Adjust Cars

Green Car
Speed: 6 m/s
Slow Fast
Start Time: 0 s
Orange Car
Speed: 4 m/s
Slow Fast
Start Time: 3 s

Try These:

Live Data

Green Car Speed
6.0
m/s
Green Car Velocity
6.0 m/s
Direction: EAST
Orange Car Speed
4.0
m/s
Orange Car Velocity
4.0 m/s
Direction: EAST
Ready to start!
Adjust speeds and click Start Race

Remember: Speed (how fast) ≠ Velocity (speed + direction)

Use SPACE to pause/play | R to reset | Made for easy learning