Water reservoir

What is the weight of a metal reservoir - cylinder with a diameter of 2 m and a length of 8 m if 1 m2 of sheet metal weighs 100 kg?

Correct answer:

m =  5654.8668 kg

Step-by-step explanation:

D=2 m l=8 m  r=D/2=2/2=1 m  S1=π r2=3.1416 123.1416 m2 S2=π D l=3.1416 2 850.2655 m2  S=2 S1+S2=2 3.1416+50.265556.5487 m2  h=100 kg/m2  m=h S=100 56.5487=5654.8668 kg

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