Ответ:
A=F*S
F=m*g
m=p*V
V=S*l
V= 7m × 0.0072m^2= 0.0504m^3
m=0.0504m^3×7 800 kg/m^3=393.12kg
F=393.12kg×10 m/s^2=3931.2H
A=3931.2H × 60m=235 872Дж
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
A=F*S
F=m*g
m=p*V
V=S*l
V= 7m × 0.0072m^2= 0.0504m^3
m=0.0504m^3×7 800 kg/m^3=393.12kg
F=393.12kg×10 m/s^2=3931.2H
A=3931.2H × 60m=235 872Дж