Вопрос школьника по предмету Физика
рассчитайте работу которую вы совершаете поднимаясь по лестнице на 4 этаж,
Pешите сpочно!!!
Ответ учителя по предмету Физика
h=2,5 м*4=10 м работа против силы тяжести:
g=10 Н/кг A= — mgh= — 45*10*10= — 4500 Дж;
m=45 кг Ответ: А= — 4500 Дж.
____________
A-?
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