Răspuns:
x1(0)=2+2*0=2+0=2
x2(0)=2+0=2
x3(0)=3-3*0=3-0=3
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v1=2
v2=1m/s
v3= -3m/s
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x1(2)=2+2*2=2+4=6
x2(2)=2+2=4
x3(2)=3-3*2=3-6= -3
1min=60secunde
x1(60)=2+2*60=2+120=122
x2(60)=2+60=62
x3(60)-3-3*60=3-180=-177
Explicație: