Physics-
General
Easy

Question

A uniform thin hemispherical shell is kept at rest and in equilibrium on an inclined plane of angle of inclinationq = 30º as shown inf figure. If the surface of the inclined plane is sufficiently rough to prevent sliding then the angle a made by the plane of hemisphere with inclined plane is :

  1. value of µ is needed    
  2. 30º    
  3. 45º    
  4. 60 º    

The correct answer is: 60 º


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