Mechanical Engineering - Engineering Mechanics - Discussion

Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 16)
16.
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is
bh3/4
bh3/8
bh3/12
bh3/36
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 1 of 2.

Charul said:   1 decade ago
Want to know the solution of this question.

Bina Mistry said:   1 decade ago
The moment of inertia of a triangular section of height h about an axis passing through its C.G and parallel to its base is given as,

I = bh3/36.

The moment of inertia of a triangular section of height h about its base is given as,

I = bh3/12.
(1)

Priyesh said:   1 decade ago
I = bh3/12 for triangular section oh height h about its base, and centroid of triangular section is given by 1/3.

So I = bh3/12*1/3. Which is bh3/36?

Dabhi prakash said:   10 years ago
Give full solution.

Musliu said:   10 years ago
Please let me understand.

Mahesh said:   8 years ago
At apex bh3/24.

Mahmood Ahmad said:   8 years ago
It is BH3/12.
(1)

Jasir said:   8 years ago
Please can anyone explain more about the moment of inertia rule?

Shehab zakaria said:   8 years ago
Why 1/3?

Dinesh said:   7 years ago
The Center of gravity lies at 1/3 rd of height from base.


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