(a) State Newton's 3rd law of motion. = (b) Two cubes are placed on a horizontal...

 

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(a) State Newton's 3rd law of motion. = (b) Two cubes are placed on a horizontal surface in contact with one another. The cube on the left has a mass of mi 4 kg and the cube on the right has a mass m2 = 3 kg. A force Fi is applied to the left side of the left cube causing both cubes to move at a constant speed v₁. If the coefficient of kinetic friction between the cubes and the surface is 0.3, what is the magnitude of the force exerted by the left cube on the right cube? (c) What is the magnitude of Fi? (d) The cube of m₁ = 4 kg is placed on top of the cube m2 = 2 kg and a force F2 is applied to the bottom cube so that both cubes move at a constant speed v₁. What is the magnitude and the direction of the force exerted by the bottom cube on the top cube? Note: The coefficient of static friction us between the cubes is 0.5. (a) State Newton's 3rd law of motion. = (b) Two cubes are placed on a horizontal surface in contact with one another. The cube on the left has a mass of mi 4 kg and the cube on the right has a mass m2 = 3 kg. A force Fi is applied to the left side of the left cube causing both cubes to move at a constant speed v₁. If the coefficient of kinetic friction between the cubes and the surface is 0.3, what is the magnitude of the force exerted by the left cube on the right cube? (c) What is the magnitude of Fi? (d) The cube of m₁ = 4 kg is placed on top of the cube m2 = 2 kg and a force F2 is applied to the bottom cube so that both cubes move at a constant speed v₁. What is the magnitude and the direction of the force exerted by the bottom cube on the top cube? Note: The coefficient of static friction us between the cubes is 0.5.