Centimeter 83033

Calculate the weight in kg of a steel rope 1.5 cm in diameter and 10 m long if one cubic centimeter of steel weighs 7.8 g

Correct answer:

m =  13.7837 kg

Step-by-step explanation:

d=1.5 cm L=10 m cm=10 100  cm=1000 cm ρ=7.8 g/cm3  r=d/2=1.5/2=43=0.75 cm S=π r2=3.1416 0.7521.7671 cm2 V=S L=1.7671 10001767.1459 cm3 m1=ρ V=7.8 1767.145913783.7378 g  m=m1 kg=m1:1000  kg=13783.7378:1000  kg=13.784 kg=13.7837 kg



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