Example 4.7 Figure 4.38 illustrates a person trying to push ablock up an inclined surface by applying a force parallel tothe incline. The weight of the block is W, the coefficient ofmaximum friction between the block and the incline is u,and the incline makes an angle 0 with the horizontal.Determine the magnitude P of the minimum force theperson must apply in order to overcome the frictional andgravitational effects to start moving the block in terms of W,µ, and 0.Fig. 4.38 Example 4.7

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Example 4.7 Figure 4.38 illustrates a person trying to push a block up an inclined surface by applying a force parallel to the incline. The weight of the block is W, the coefficient of maximum friction between the block and the incline is µ, and the incline makes an angle 0 with the horizontal. Determine the magnitude P of the minimum force the person must apply in order to overcome the frictional and gravitational effects to start moving the block in terms of W, µ, and 0.

Example 4.7 Figure 4.38 illustrates a person trying to push a block up an inclined surface by applying a force parallel to the incline. The weight of the block is W, the coefficient of maximum friction between the block and the incline is µ, and the incline makes an angle 0 with the horizontal. Determine the magnitude P of the minimum force the person must apply in order to overcome the frictional and gravitational effects to start moving the block in terms of W, µ, and 0.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

Example 4.7 Figure 4.38 illustrates a person trying to push a
block up an inclined surface by applying a force parallel to
the incline. The weight of the block is W, the coefficient of
maximum friction between the block and the incline is u,
and the incline makes an angle 0 with the horizontal.
Determine the magnitude P of the minimum force the
person must apply in order to overcome the frictional and
gravitational effects to start moving the block in terms of W,
µ, and 0.
Fig. 4.38 Example 4.7

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