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## Homework Statement

- Two crates are stacked on top of each other on a horizontal floor. The coefficient of static friction between Box A and Box B is 0.6. The coefficient of static friction between Box A and the floor is 0.2. A force of 100 N is applied parallel to the floor on Box B. The boxes move together along the floor. The ratio of the mass of Box A to Box B is possibly

- 1) 5:1
- 2) 5:2
- 3) 4:1
- 4) 3:1
- 5) 1:2

## Homework Equations

none so far

## The Attempt at a Solution

Hi people. I was trying to figure out how to solve this problem, but I do not even have any hints of an idea so far. Could anyone please help me gets started?

Thanks in advance!