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Another math problem i cant solve!!!?
Moment of inertia describes an objects ability to resist bending. The moment of inertia for a rectangular beam is represented by the formula I= bh^3 /12 where:
I moment of interia
b base width
h height
If the beam's base width is 120 mm and the height is 420 mm, what is the beam's moment of inertia in inches^4?
So i dont know what inches^4 is..... ive tried using the fourth root of the answer that i get but i cant get the right answer.. ive tried this problem over 15 times.....
3 Answers
- Anonymous10 years ago
moment of inertia could be in mm^4 as easily as inches^4. To get inches^4, just convert b and h to inches and plug them into the formula. That will give you the answer in inches^4.
