1) р=1200*20=24000
2) р1/р2=1,5 m1/m2=3 v1/v2=1/2
3) mv=4500 v=3 m=1500
4) dp=p2-p1=10
F=dp/t=10/2 = 2H
5) mv
6) v=150000*0.6/(150000+50000)=0.45
7) 8*5+2*3=10*v
v=4.6
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Verified answer
1) р=1200*20=24000
2) р1/р2=1,5 m1/m2=3 v1/v2=1/2
3) mv=4500 v=3 m=1500
4) dp=p2-p1=10
F=dp/t=10/2 = 2H
5) mv
6) v=150000*0.6/(150000+50000)=0.45
7) 8*5+2*3=10*v
v=4.6