Ответ:
m1=60kg
m2=0.5kg
U2=20/cek
U1?
m1U1=m202
U1=m2U2/m1=10/60=0,6m/cek
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Ответ:
m1=60kg
m2=0.5kg
U2=20/cek
U1?
m1U1=m202
U1=m2U2/m1=10/60=0,6m/cek