Question

Manish works in construction. He knows that a 6 meter long metal bar weighs 42kg. He wants to figure out how much a four meter long metal bar weigh which is made of the same material and thickness. What would be the weigh

Answer 1

Answer:

Consider, the length of the rod is unity ( 1m ). The density of steel is 7850 kg/m³. Take d as the diameter of the rod (in mm).

...

Determination of unit weight of circular steel bars.

Diameter of bar Weight of 1 m length

8 mm 0.39 kg

10 mm 0.62 kg

12 mm 0.88 kg

16 mm 1.58 kg

Answer 2

Answer:

it will be 28 kg

Step-by-step explanation:

6 m long road weight 42 then what for 4 kg....?