Предмет: Физика, автор: adafhjjvffhh

Человек массой 60 кг приобретает лестницу высотой 10 м за 15 сек

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Автор ответа: vredina5596

0

Так как Мощьность N=A/t (работа в ед. времени), а работа A = mgh( т.к. сила тяжести - сила консервативная), то N=mgh/t=60*10*10/15=400 Дж/с

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