In Fig. 5.28, C is a stone block weighing 6 kN. It is being raised slightly by means of two wooden wedges A andB with a force P on wedge B. The angle between the contacting surfaces of the wedge is 5°. If coefficient of friction is 0.3 for all contacting surfaces, compute the value of P required to impend upward motion of the block C. Neglect weight of the wedges.

In Fig. 5.28, C is a stone block weighing 6 kN. It is being raised slightly by means of two wooden wedges A andB with a force P on wedge B. The angle between the contacting surfaces of the wedge is 5°. If coefficient of friction is 0.3 for all contacting surfaces, compute the value of P required to impend upward motion of the block C. Neglect weight of the wedges.

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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