August 2018 1 14 Report
Dwie kulki z plasteliny jedna o masie 20g druga o masie 50g turlaly sie naprzeciwko siebie z predkosciami 4m/s kazda , a po zderzeniu poruszaly sie razem :
A. w te strone cokulka o masie 50g z predkoscia 4m/s
B. w te strone cokulka o masie 50g z predkoscia 12/7 m/s
C. w te strone cokulka o masie 20g z predkoscia 4m/s
D. w te strone cokulka o masie 20g z predkoscia 12/7 m/s

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