sheilaarel62 sheilaarel62

13-07-2021
Mathematics

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If a 5 meter long metal bar has 40 kg mass then what is the mass of a metal bar 3 meters long

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Trancescient Trancescient

13-07-2021

24 kg

Step-by-step explanation:

You start by calculating the linear mass density of the rod:

d = m/L = (40 kg)/(5 m) = 8 kg/m

So for a 3-m long bar, the mass can be calculated as follows:

m = d×L = (8 kg/m)(3 m) = 24 kg

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