A small box of mass m, is sitting on a board of mass ma and length L (Eigure 1). The board rests on a frictionless horizontal surface. The coefficient of static friction between Part A the board and the box is . The coefficient of kinetic friction between the board and the box is, as usual, less than 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). 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. Express your answer in terms some or all of the variables 4, m1, m2. g. and L. Do not include f in your answer. > View Available Hint(s) ? Fain = Submit Provide Feedback

A small box of mass m, is sitting on a board of mass ma and length L (Eigure 1). The board rests on a frictionless horizontal surface. The coefficient of static friction between Part A the board and the box is . The coefficient of kinetic friction between the board and the box is, as usual, less than 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). 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. Express your answer in terms some or all of the variables 4, m1, m2. g. and L. Do not include f in your answer. > View Available Hint(s) ? Fain = Submit Provide Feedback

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 111AP: A crate of mass 100.0 kg rests on a rough surface inclined at an angle of 37.0with the horizontal. A...

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Question

XVI
Board Pulled Out from under a Box
A small box of mass mi 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
Part A
the board and the box is ls. The coefficient of kinetic
friction between the board and the box is, as usual, less
than ls.
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).
Throughout the problem, use g for the magnitude of the
free-fall acceleration. In the hints, use f for the magnitude
Express your answer in terms of some or all of the variables ls, m1, m2, g, and L. Do not include f in your answer.
of the friction force between the board and the box.
• View Available Hint(s)
?
Fmin =
Submit
Provide Feedback
Figure
1 of 1
L

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