Question

A cylindrical road roller made of iron as shown in the adjoining figure, is 1m long .its inner diameter is 54cm and the thickness of the iron sheet rolled into the road roller is 9cm .find the weight of the roller if 1c.c. of iron weight is 8g.

Answer 1

Answer:

inner radius(r)=27cm

outer radius(R)=36cm(27+9)

height=100cm

vol. of hollow cylinder=πh(R2-r2)

vol=π×100(567)

=178200cm3

weight of 1c.c.=8g

". ". 178200c.c=8×178200

=1425600g

or

=1425.6kg

Answer 2

Answer:

the answer is 142.304 Kg

Step-by-step explanation: