A small box of mass m₁ is sitting on a board of mass m2 and length L (Figure 1). The board rests on a frictionless horizontal surface. The coefficient of static friction between the board and the box is us. The coefficient of kinetic friction between the board and the box is, as usual, less than μg. Throughout the problem, use g for the magnitude of the free-fall acceleration. In the hints, use f for the magnitude of the friction force between the board and the box. Figure m₁ m₂ L 1 of 1 > Part A Find Fmin, the constant force with the least magnitude that must be applied to the board in order to pull the board out from under the the box (which will then fall off of the opposite end of the board). Express your answer in terms of some or all of the variables us, m₁, m2, g, and L. Do not include f in your answer. Fmin = Submit Provide Feedback G| ΑΣΦ Request Answer Constants ? Next >

A small box of mass m₁ is sitting on a board of mass m2 and length L (Figure 1). The board rests on a frictionless horizontal surface. The coefficient of static friction between the board and the box is us. The coefficient of kinetic friction between the board and the box is, as usual, less than μg. Throughout the problem, use g for the magnitude of the free-fall acceleration. In the hints, use f for the magnitude of the friction force between the board and the box. Figure m₁ m₂ L 1 of 1 > Part A Find Fmin, the constant force with the least magnitude that must be applied to the board in order to pull the board out from under the the box (which will then fall off of the opposite end of the board). Express your answer in terms of some or all of the variables us, m₁, m2, g, and L. Do not include f in your answer. Fmin = Submit Provide Feedback G| ΑΣΦ Request Answer Constants ? Next >