Question

Find the radius of gyration if, moment of inertia I is 160 unit and 10 unit as area.

(a) 4 unit

(b) 5 unit

(c) 2.3 unit

(d) 5.6 unit

The question was asked by my school principal while I was bunking the class.

I need to ask this question from Structural-Analysis Fundamentals in division Structures and Loads of Aircraft Design

Answer 1

The correct option is (a) 4 unit

Easiest explanation: Radius of gyration = \(\sqrt{\frac{Moment \,of\, inertia}{Area}}\)

= \(\sqrt{\frac{160}{10}}\) = 4 unit.