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NastyaFearless
@NastyaFearless
July 2022
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ЗАДАЧИ ФИЗИКА ( подробно )
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tana20101997
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1) S=V0*t/2 V0=2*S/t=2*200/20=20 м/с
2) S=0,5*(t4^2-t3^2)=0,5*1*(16-9)=3,5 м
3) F=m*a/g=4900*0,3/9,8=150 H
4) m=P/g=14700/9,8=1500 кг
a=V0/t=15/20=0,75 м/с2
F=m*a=1500*0,75=1125 H
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Answers & Comments
Verified answer
1) S=V0*t/2 V0=2*S/t=2*200/20=20 м/с2) S=0,5*(t4^2-t3^2)=0,5*1*(16-9)=3,5 м
3) F=m*a/g=4900*0,3/9,8=150 H
4) m=P/g=14700/9,8=1500 кг
a=V0/t=15/20=0,75 м/с2
F=m*a=1500*0,75=1125 H