Three identical 4.0-kg cubes are placed on a horizontal ...

[dmcintosh]

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 2

Three identical 6.0-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 3.0 m/s2 . What is the magnitude of the force exerted on the middle cube by the left cube in this case?
 a. 18 N
  b. 36 N
  c. 27 N
  d. 21 N
  e. none of the above

[heinisk01]

Answer to Question 1

a

Answer to Question 2

b

[dmcintosh]

TY

[heinisk01]

You're welcome