QUESTION FOUR Two wooden blocks of mass 20 kg and 10 kg are placed on a rough horizontal surface. A rope connects the two blocks When a horizontal force, F, of magnitude 55 N is applied to the blocks as shown, the blocks accelerate to the right at 0,36 m-s2 20 kg F=55 N 10 kg State Newton's Second law of motion in words. The kinetic frictional force between the 20 kg block and the surface is TWICE that between the 10 kg block and the surface. 4.1, 4.2 (2) Draw a labeled free body diagram to show all the HORIZONTAL FORCES acting on the 10 kg block as it moves. (3) 4.3 By applying Newton's 2nd law of motion separately to each of the blocks, calculate: 4.3.1 The magnitude of the frictional force between the 10 kg block and the (5) surface 4.3.2 μk, the coefficient of kinetic friction between the blocks and the surface. (3) The rope connecting the two blocks is now cut 44 How will this affect the acceleration of the 10 kg block? (Choose from: INCREASES, DECREASES or REMAINS THE SAME.) Explain (3) [16]​



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