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.

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 7.55P: A wedge is used to prop up the 6000-lb block of marble. The wedge angle is =30, and the angle of...

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