BALLOON CAR: THE WOBBLY WHEEL!

Drag the red axle to the center of the wheel to build a fast car. If it's off-center, you'll waste your balloon's energy bouncing!

Alignment Status:
PERFECTLY CENTERED!
Predicted Forward Energy

2. Test Drive!

💡 Tip: A real axle must be exactly in the middle so the car glides smoothly forward instead of lifting up and down!