A rope attached to a 500-lb block passes over a fric- tionless pulley and is wrapped for one full turn around a If the coefficient of fric- tion between the rope and the post is 0.25, determine fixed post as shown in Fig. The minimum force P that must be used to keep the block from falling. P W

A rope attached to a 500-lb block passes over a fric- tionless pulley and is wrapped for one full turn around a If the coefficient of fric- tion between the rope and the post is 0.25, determine fixed post as shown in Fig. The minimum force P that must be used to keep the block from falling. P W

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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Question

A rope attached to a 500-lb block passes over a fric-
tionless pulley and is wrapped for one full turn around a
If the coefficient of fric-
tion between the rope and the post is 0.25, determine
fixed post as shown in Fig.
The minimum force P that must be used to keep the
block from falling.
P
W

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