Dimensions 81622

We cut the 80 cm and 50 cm, and 20 cm frames with a weight of 160 kg to a frame of half the dimensions. What is his weight now?

Correct answer:

m2 =  20 kg

Step-by-step explanation:

a=80 cm b=50 cm c=20 cm m1=160 kg  V1=a b c=80 50 20=80000 cm3 x=a/2=80/2=40 cm y=b/2=50/2=25 cm z=c/2=20/2=10 cm  V2=x y z=40 25 10=10000 cm3  ρ = m1/V1 = m2/V2 = const m1/V1 = m2/V2  m2=m1 V1V2=160 8000010000=80000160 10000=800001600000=20 kg

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