Two rectangular blocks A and B are placed on a horizontal surface at a very small separation. The masses of the blocks are m_(A) = 4 kg and m_(B) =5 kg. Coefficient of friction between the horizontal surface and both the blocks is mu = 0.4. Horizontal forces F_(1) and F_(2) are applied on the blocks as shown. Both the forces vary with time asF_(1) = 15 + 0.5 tF_(2) = 2tWhere ‘t’ is time in second. Plot the variation of friction force acting on the two blocks (f_(A) "and" f_(B)) vs time till the motion starts. Take rightward direction to be positive for B and leftward direction to be positive forf_(A).

Two rectangular blocks A and B are placed on a horizontal surface at a

1.	Two rectangular blocks A and B are placed on a horizontal surface at a very small separation. The masses of the blocks are m_(A) = 4 kg and m_(B) =5 kg. Coefficient of friction between the horizontal surface and both the blocks is mu = 0.4. Horizontal forces F_(1) and F_(2) are applied on the blocks as shown. Both the forces vary with time asF_(1) = 15 + 0.5 tF_(2) = 2tWhere ‘t’ is time in second. Plot the variation of friction force acting on the two blocks (f_(A) "and" f_(B)) vs time till the motion starts. Take rightward direction to be positive for B and leftward direction to be positive forf_(A).
Answer» ANSWER :`(##IJA_PHY_V01_C03_E01_123_A01##)`