A plank 25 meters long is placed on rough inclined planes at an angle of 15 with the horizontal as shown in Figure 3. The angle of friction is Ø = 15° at both inclines. If the weight of the plank is W = 350 N concentrated at 12 meters from end A, compute the minimum distance x from B at which a load P = 75 N can be placed before slipping impends. W=350 N 12 P=75 N 60° 13-х RA 30 15° B -15° 45° 30° 45° g=15° RE Figure 3

A plank 25 meters long is placed on rough inclined planes at an angle of 15 with the horizontal as shown in Figure 3. The angle of friction is Ø = 15° at both inclines. If the weight of the plank is W = 350 N concentrated at 12 meters from end A, compute the minimum distance x from B at which a load P = 75 N can be placed before slipping impends. W=350 N 12 P=75 N 60° 13-х RA 30 15° B -15° 45° 30° 45° g=15° RE Figure 3

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 7.50P: The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the...

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