Physics-
General
Easy

Question

A 5 m long pole of 3 kg mass is placed against a smooth vertical well as shown in the figure. Under equilibrium condition, if the pole makes an angle of 37° with the horizontal, the frictional force between the pole and horizontal surface is

  1. 20 N    
  2. 30 N    
  3. 20 mu N    
  4. 30 mu N    

The correct answer is: 20 N

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