7. Friction, Inclines, Systems
Systems of Objects with Friction
7. Friction, Inclines, Systems Systems of Objects with Friction
12PRACTICE PROBLEM
A 4.0 kg crate is moving at an acceleration of 1.5 m/s2 on a horizontal floor. Above it, there is a 2.5 kg book. From experimentation, it is found that the book doesn't slide off on the crate for the minimum value of μ = 0.15 between the book and the crate. Assuming μ = μs = μk, calculate the acceleration of the book relative to the floor if μ is one-third of this value.
A 4.0 kg crate is moving at an acceleration of 1.5 m/s2 on a horizontal floor. Above it, there is a 2.5 kg book. From experimentation, it is found that the book doesn't slide off on the crate for the minimum value of μ = 0.15 between the book and the crate. Assuming μ = μs = μk, calculate the acceleration of the book relative to the floor if μ is one-third of this value.