Question

if 22.5m m of a uniform iron rod weigh 85.5kg what will the weight of 5m of the same rod​

Answer 1

Answer:

Weight of 22.5mm of a uniform iron rod = 85.5 kg

So, weight of 10mm of the rod = 85.5kg/22..5mm x 10mm

                                                  =3.8 x 10 kg

                                                   =38 kg

Now since 1 cm =10 mm,

so, weight of 1 cm of the rod= 38 kg

Thus weight of 5 m of rod = 38 kg x 500     (since 5 m=500 cm)

                                            =19000 kg