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What is the mass of the solid iron wrecking ball of radius 18 cm if the density of iron is 7.8gm/cm3
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What is the mass of the solid iron wrecking ball of radius 18 cm if the density of iron is 7.8gm/cm3

User TeYoU
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Density= mass/volume
Mass=density*volume

Find volume of the sphere ball:
Volume= (4/3)pi r^2
Volume= (4/3) pi 18^2
Volume = 24429 cm^3

Mass=7.8* 24429
Mass= 190,546 grams or 190.5 kg

Hope this helps :)
User Igor Lantushenko
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