Two blocks each of mass 1 kg are placed as shown. They are connected by a string which passes over a smooth (massless) pulley. There is no friction between A and the ground and the coefficient of friction between A and B is 0.2. A force F is applied to B. Which of the following statements is/are correct :-

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For no slipping T = f max ​ ( f max ​ = 2 N ) F − T − f m a x ​ = 0 ⇒ F = 4 N Once blocks starts slipping, f becomes constant = 2 N

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