Ответ:Кпд=Ап/Аз*100%
Ап=mgh
Aз=Fl
Кпд=60%=0.6
0.6=mgh/Fl
0.6=150кг*10*0.4м/800Н*l
0.6=3/5
3/5*l=3кг/4Н
l=1.25м
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:Кпд=Ап/Аз*100%
Ап=mgh
Aз=Fl
Кпд=60%=0.6
0.6=mgh/Fl
0.6=150кг*10*0.4м/800Н*l
0.6=3/5
3/5*l=3кг/4Н
l=1.25м