Question
31.Two block A and B placed on a plane surface as shown in attachment. The mass of block A is 100 kg and that of block B is 200 kg. Block A is tied to a stand and block B is pulled by a force F. If the coefficient of friction between the surface A and B is 0.2 and the coefficient of B and the plane is 0.3 then for the motion of B the minimum value of F will be A) 700 N B) 1050 N C) 900 N D) 1100N