2. A 70 kg person stands on one end of a one-meter long board. The board is uniform and weighs 100 k
問題詳情
2. A 70 kg person stands on one end of a one-meter long board. The board is uniform and weighs 100 kg.How far is the center of mass of the system “person on board” from the person? (A) 0.1 m (B) 0.3 m (C) 0.5 m (D) 0.8 m (E) 0.9 m