The stiff-leg derrick is supported by a ball-and-socket joint at D and two cables BA and BC. The cables are attached to a smooth collar ring at B. which allows the rotation of the derrick about the z axis. If the derrick supports a crate having a mass of 300 kg, determine the tension in the cables and the x, y and z components of the reaction at D.

The stiff-leg derrick is supported by a ball-and-socket joint at D and two cables BA and BC. The cables are attached to a smooth collar ring at B. which allows the rotation of the derrick about the z axis. If the derrick supports a crate having a mass of 300 kg, determine the tension in the cables and the x, y and z components of the reaction at D.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.21P: The 1200-lb homogeneous block is placed on rollers and pushed up the 10 incline at constant speed....

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Question

The stiff-leg derrick is supported by a ball-and-socket joint at D and two
cables BA and BC. The cables are attached to a smooth collar ring at B,
which allows the rotation of the derrick about the z axis. If the derrick
supports a crate having a mass of 300 kg, determine the tension in the
cables and the x, y and z components of the reaction at D.
10 m
6 m
3 m
3 m
2 m
2 m

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