First slide
Stress and strain
Question

A bob of mass 10 kg is attached to a wire 0.3 m long. Its breaking stress is  4.8×107 N/m2 . The area of cross-section of the wire is 10-6 m2 . What is the maximum angular velocity with which it can be rotated in a horizontal circle?

 

Easy
Solution

FA=mw2lA=4.8×10+7
w2=4.8×10+7×10-610×0.3=16
W = 4 rad/sec

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App