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soltannogaev1
@soltannogaev1
July 2022
1
11
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скорость1=60км/ч
средняя скорость =65км/ч
найдите скорость2
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coolbutcute
Uср=U1+U2/2, при t1=t2=t и S1=S2=S
Uср=U1+U2/2
U2=2Uср-U1=130-60=70 км/ч
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Uср=U1+U2/2
U2=2Uср-U1=130-60=70 км/ч