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Question:

How do I calculate the weight of an aluminum bar?

1, diameter 30 (mm)2, 1 meters in length3, aluminum density: 2.71The weight of aluminium bar (unit KG)Please provide the calculation formula

Answer:

M= P v= p * PI (d/2) ^2*hMass = volume * densityRound bar volume = base area * height (i.e. length)The base area = the square of the radius of pi * (that is, diameter /2)
This is too lazy, usually the weight (mass) is the volume density of X, calculate your own it.W=3.1415926X0.03X1X2.71X1000So simple, wrong on the first floor, halo!
Weight = square of radius, multiplied by pi, multiplied by length, then multiplied by density
Weight = mass *g= density x volume *gVolume = (radius ^2) *3.14* length= (diameter ^2/4) *3.14* length= (0.03^2/4) *3.14*1=0.0007065m^3So, weight =2.71*0.0007065*9.81=0.018782373kg

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