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69120 м = 69.12 км
Объяснение:
Дано:
V - 12.6 м/с
t - 1.5 ч = 1.5*60*60 = 5400 с
Найти: S
Анализ:
При равномерном прямолинейном движении путь находится по формуле
S = V * t
S = 12.8 * 5400 = 69120 (м) = 69.12 (км)
ответ: 69.12 км