Notifications
Clear all
A solid iron pole consists of a cylinder of height 220 cm and base diameter 24 cm, which is surmounted by another cylinder of height 60 cm and radius 8 cm. Find the mass of the pole, given that 1 cm3 of iron has approximately 8 g mass.
Surface Areas and Volumes
1
Posts
2
Users
0
Likes
170
Views
0
30/06/2021 12:45 pm
Topic starter
A solid iron pole consists of a cylinder of height 220 cm and base diameter 24 cm, which is surmounted by another cylinder of height 60 cm and radius 8 cm. Find the mass of the pole, given that 1 cm3 of iron has approximately 8 g mass.
Answer
Add a comment
Add a comment
Topic Tags
1 Answer
0
30/06/2021 12:52 pm
Given, the height of the big cylinder (H) = 220 cm
Radius of the base (R) = 24/12
= 12 cm
So, the volume of the big cylinder = πR2H
= π(12)2 × 220 cm3
= 99565.8 cm3
Now, the height of smaller cylinder (h) = 60 cm
Radius of the base (r) = 8 cm
The volume of the smaller cylinder = πr2h
= π(8)2 × 60 cm3
= 12068.5 cm3
∴ Volume of iron = Volume of the big cylinder+ Volume of the small cylinder
= 99565.8 + 12068.5
= 111634.5 cm3
Mass = Density x volume
So, mass of the pole = 8 × 111634.5
= 893 Kg (approx.)
Add a comment
Add a comment
Forum Jump:
Related Topics
-
Derive the formula for the volume of the frustum of a cone.
3 years ago
-
Derive the formula for the curved surface area and total surface area of the frustum of a cone, given to you in Section 13.5, using the symbols as explained.
3 years ago
-
An oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum of a cone. If the total height is 22 cm
3 years ago
-
In one fortnight of a given month, there was a rainfall of 10 cm in a river valley. If the area of the valley is 97280 km^2
3 years ago
-
A cistern, internally measuring 150 cm × 120 cm × 100 cm, has 129600 cm^3 of water in it. Porous bricks are placed in the water until the cistern is full to the brim.
3 years ago
Forum Information
- 321 Forums
- 27.3 K Topics
- 53.8 K Posts
- 0 Online
- 12.4 K Members
Our newest member: Stripchat
Forum Icons:
Forum contains no unread posts
Forum contains unread posts
Topic Icons:
Not Replied
Replied
Active
Hot
Sticky
Unapproved
Solved
Private
Closed