0

Guest

Courses New

The radius of gyration of a disc of mass 100 gm and radius 5 cm about an axis passing through its centre of gravity and perpendicular to the plane is (a) 0.5 cm (b) 2.5 cm (c) 3.54 cm (d) 6.54 cm

The radius of gyration of a disc of mass 100 gm and radius 5 cm about an axis passing through its centre of gravity and perpendicular to the plane is
(a) 0.5 cm (b) 2.5 cm
(c) 3.54 cm (d) 6.54 cm

Grade:Upto college level

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
576-1905_1.PNG
Vikas TU
14149 Points
3 years ago
the moment of inertia of a disc passing thrugh the centre of the axis is given by
i=mr^2/2
I=100*25/2
i=50*25
i=1250
radius of gyration is given by k=under root i/m
therefore the radius of a gyration is
k=under root 1250/100
k=under root 12.5
 

Think You Can Provide A Better Answer ?

Other Related Questions on Engineering Entrance Exams

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More