September 2018 2 28 Report

Pedal rowru o dl. 18 cm obraca kolo zebate o promieniu 6 cm. Jaka sila ciagnie lancuch, jesli rowerzysta naciska pedal sila 300N?

A. 50N B. 100N C. 900N D. 1800N

Obliczenia poprosze + dam naj. (:


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