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Question

The inclined plane OA rotates in vertical plane about a horizontal axis through = 3 rad/sec. As it passes the omega O with a constant counter clockwise velocity theta= 0, a small mass m = 1 kg is placed upon it at a radial distance r =position 0.5 m. If the mass is observed to be at rest with respect to inclined plane. theta = 37° between the mass The value of static friction force at & the incline plane.

  1. 1.5 N    
  2. 3.5 N    
  3. 2.4 N    
  4. none    

The correct answer is: 1.5 N

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