v1=1.5 м/с R1=0.3 м v2=2 м/с R2=?
v1/R1=v2/R2
R2=v2*R1/v1=2*0.3/1.5=0.4 м (40 см)
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v1=1.5 м/с R1=0.3 м v2=2 м/с R2=?
v1/R1=v2/R2
R2=v2*R1/v1=2*0.3/1.5=0.4 м (40 см)
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