7 identical boxes are place next each other
The floor is smooth
Each box has a mass of 1 kg
4 coefficient of friction is 0.1 (i don't know why is it given.)
5 The 7 boxes is pushed by a force of 89 N from the left side
Find the force between box 5 and box 6. ( counting from the left side)
Can you please explain how to do this, Thank you.