(1) A 50 lb roller, with diameter 10 in, isused to level a tile floor, and isresting directly on the subflooring asshown. If the thickness of the tile is30°0.25 in, what is the minimum forceP required to pull the roller onto thetiles when it is pulled slowly to theright?Fig. P4.75 and P4.76

Answered: Image /qna-images/answer/dc184b09-4847-4a99-9dd1-6c34fd248f4d.jpg

(1) A 50 lb roller, with diameter 10 in, is used to level a tile floor, and is resting directly on the subflooring as shown. If the thickness of the tile is 0.25 in, what is the minimum force P required to pull the roller onto the tiles when it is pulled slowly to the right?

(1) A 50 lb roller, with diameter 10 in, is used to level a tile floor, and is resting directly on the subflooring as shown. If the thickness of the tile is 0.25 in, what is the minimum force P required to pull the roller onto the tiles when it is pulled slowly to the right?

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.38P: Two concrete blocks weighing 320 lb each form part of the retaining wall of a swimming pool. Will...

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Concept explainers

Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.

Question

(1) A 50 lb roller, with diameter 10 in, is
used to level a tile floor, and is
resting directly on the subflooring as
shown. If the thickness of the tile is
30°
0.25 in, what is the minimum force
P required to pull the roller onto the
tiles when it is pulled slowly to the
right?
Fig. P4.75 and P4.76

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