Предмет: Физика, автор: lllllllll56

СРОЧНО!
Тягач переместил бетонный блок массой 300 кг на 60 м по горизонтальной поверхности. Какая работа при этом была совершена,если сила трения составила 0,25 веса блока?

Ответы

Автор ответа: nalbandyanarman2018

Ответ:

Объяснение:

P=N=mg
P=N=300*10=3000H
Fтр=3000*0,25=750Н
А=FS
A=750*60=45000Дж

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