On a part-time job, you are asked to bring a cylindrical iron rod of density 780

Question

On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3 , length 82.2cm and diameter 2.25cm from a storage room to a machinist. Calculate the weight of the rod, w. The acceleration due to gravity, g = 9.81m/s2 . Express your answer numerically in newtons.   w =   N On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3 , length 82.2cm and diameter 2.25cm from a storage room to a machinist. Calculate the weight of the rod, w. The acceleration due to gravity, g = 9.81m/s2 . Express your answer numerically in newtons.   w =   N   w =   N   w =   N   w =   N

Explanation / Answer

weight = volume * density

= (area* length ) * density

= (pi / 4 * (2.25* 10^-2)^2 ) * (0.822 ) * 7800 = 2.549 kg

if u want ans in Newtons

m* g = 2.549 * 9.81 = 25.008656 N

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