Free Fall

Drop two balls of very different mass down an airless column. Their weights differ wildly, yet the fall time and impact speed come out identical — that is Galileo's result, live.

Weight A

2.0 N

Weight B

68.7 N

Fall time (both)

2.02 s

Impact speed (both)

19.81 m/s

Height fallen

0.0 m

Current speed

0.0 m/s

Drop height h20 m

Gravity g9.81 m/s²

Mass A0.2 kg

Mass B7.0 kg

Column is evacuated — no air resistance.

Ready — set the sliders and press Drop.