If you have 2 boxes over each other in a car that is slowing down . The mass of each one of them is 10kg and Us = 0.4 for all surfaces. What is the maximum deceleration that doesnt make the boxes fall?
And will it make different if you change the masses of the objects?
3. The Attempt at a Solution
I calculated the deceleration it is equal to -4m/s2
By doing the following
200*0.4 = 20 * a
And, no it doesnt make difference. I have a feeling that this question is so weird...[/B]