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Question

A uniform rod of length L and mass M is free to rotate about a frictionless pivot at one end as shown in the figure. The rod is released form rest in the horizontal position

  1. initial angular acceleration of right end of the rod is 3g/2L and is common to all points on the rod.    
  2. initial linear acceleration of the right end of the rod is 3g/2 and is common to all points on the rod.    
  3. initial linear acceleration of the right end of the rod is 3g/2 and its value is different at different points.    
  4. no points on the rod have a linear acceleration greater than g.    

The correct answer is: initial angular acceleration of right end of the rod is 3g/2L and is common to all points on the rod.

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