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Physics Friction Mix MCQ (Single Correct)

Two block A and B placed on a plane surface as shown in the figure. 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 surfaces of A and B is 0.2 and the coefficient of friction between 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
1100 N

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The correct answer is:
D

for motion to start

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