NEET 2020 Model Question Paper 2

Block A of mass 30 kg. is resting on a frictionless floor. Another block B of mass 5 kg is resting on it as shown in the figure. The coefficient of static friction between the blocks is 0.4 while kinetic friction is 0.3. If a horizontal force of 175 N is applied to block B, then the acceleration of the block A will be (g = 10 m/s2 ) :-