Three identical 4.0-kg cubes are placed on a horizontal frictionless surface in contact with one another.The cubes are lined up from left to right and a force is applied to the left side of the left cube causing all three cubes to accelerate to the right at 4.0 m/s².What is the magnitude of the force exerted on the right cube by the middle cube in this case? A)16 N B)32 N C)24 N D)19 N E)none of the above

Question

Quizplus · Accepted Answer

The force exerted on the right cube by the middle cube is equal to the mass of the right cube multiplied by the acceleration. Since the mass of each cube is 4.0 kg and the acceleration is 4.0 m/s², the force is 4.0 kg * 4.0 m/s² = 16 N.

Three Identical 4