Student 4l: [I decided to] do the shot put and the sponge ball because they're two totally different weights, and if you drop them at the same time, maybe they'll drop at the same speed.
Holčička: Tady se spustila koule a molitanový míček, protože mají úplně jinou hmotnost. A když je pustíte zároveň, snad dopadnou stejnou rychlostí.