calculate the mass (m)of a piece of metal in kg, if length (l) = 1000 mm , breadth (b) = 60 mm, height (h) = 10 mm , density (p) = 7.85 g/ cm^3
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Answer:
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Answer:
We know the Density of Steel =7850 kg/m3
A simple way to calculate the weight of Steel bar is by this formula.Weight of Steel Bar (in kgs) = (D*D)/162 or (D^2)/162D is in mm, weight of 8 mm bar = (8*8)/162 = 0.395 kgs Derivation of Number 162 in the equation.
Weight of Steel Bar = Volume X DensityDensity of Steel = 7850 kg/cumSo, Weight of Steel = ((3.14* D^2)/4) * 7850Where D is in meters. By converting D in mm and simplifying the equation, we get the number 162.
Answer:
We know the Density of Steel =7850 kg/m3
A simple way to calculate the weight of Steel bar is by this formula.Weight of Steel Bar (in kgs) = (D*D)/162 or (D^2)/162D is in mm, weight of 8 mm bar = (8*8)/162 = 0.395 kgs Derivation of Number 162 in the equation.
Weight of Steel Bar = Volume X DensityDensity of Steel = 7850 kg/cumSo, Weight of Steel = ((3.14* D^2)/4) * 7850Where D is in meters. By converting D in mm and simplifying the equation, we get the number 162.