Предмет: Физика, автор: KarinaMelnik200

Взлетевший самолет поднимаясь на высоту 9 км набирает скорость 720 км/ч.Сравните приоьретеные самолетом кинетическую и потенциальную энергии:какая из них больше и во сколько раз?

Ответы

Автор ответа: BECPREDEL
0
Сначало все в СИ а потом по формулам делаем:  Е кинетическая = mu2/2 = m*200 в квадрате/2 = 20000m  Е потенциальная = mgh=m*10*9000=90000m  Ек/Еп=90000/20000= 4,5  Ответ: 4,5
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