Download the app

Questions  

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?

 

Remember concepts with our Masterclasses.

80k Users
60 mins Expert Faculty Ask Questions
a
8 rad/s
b
4 rad/s
c
2 rad/s
d
1 rad/s

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is B

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

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?

ctaimg

Create Your Own Test
Your Topic, Your Difficulty, Your Pace


Similar Questions

One face CD of a brass cube ABCD having length of side 10 cm is fixed and a tangential force is applied on the free face A. As a result the angular displacement of the other face is 0.18o. If shear modulus of brass is 4×1010N/m2, the elastic potential energy stored in the cube is π210


phone icon
whats app icon