A crane boom which weighs 200 lbs and which is 10 feet long is supported so that it makes an angle of 50° with the supporting wall and so that the rope makes an angle of 70° with the wall. If a load of 100 lbs is hung on the end of the boom, what tension occurs in the rope and what thrust does the support exert on the lower end of the boom?

A crane boom which weighs 200 lbs and which is 10 feet long is supported so that it makes an angle of 50° with the supporting wall and so that the rope makes an angle of 70° with the wall. If a load of 100 lbs is hung on the end of the boom, what tension occurs in the rope and what thrust does the support exert on the lower end of the boom?

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter5: Three-dimensional Equilibrium

Section: Chapter Questions

Problem 5.39P: The bent rod of negligible weight is supported by the ball-and-socket joint at B and the cables...

See similar textbooks

Similar questions

Find the vertical force P that will hold the linkage in the position =40. The spring of stiffness k=3kN/m is unstretched when =0. The length of each link is L=200mm. Neglect the weights of the links.
The cable supports three 400-lb loads as shown. If the maximum allowable tension in the cable is 900 lb, find the smallest possible sag hC at C.
Find the forces in members CD, DH, and HI.
Find the internal force system acting on section 3 for the pin-connected frame.
The figure shows the FBD of a portion of the space truss shown in Fig. P5.25. Use this FBD to find the force in member BD.
The structure is supported by a pin at C and a cable attached to A. The cable runs over the small pulley D. Find the internal force systems acting on sections 1 and 2.
Draw the FBD of the entire frame, assuming that friction and the weights of the members are negligible. How many unknowns appear on this FBD?
The center of gravity of the nonhomogeneous bar AB is located at G. Find the angle at which the bar will be in equilibrium if it is free to slide on the frictionless cylindrical surface.
Compute the magnitude of the pin reaction at B. Neglect the weights of the structural members.
The bent rod of negligible weight is supported by the ball-and-socket joint at B and the cables attached to points A and C. Find the forces in the cables and the magnitude of the reaction at B. Dimensions Figure P.5.39
The woman is trying to move the crate of weight W by pulling on the rope at the angle to the horizontal. Find the smallest possible tension that would cause the crate to slide and the corresponding angle .
Find the reactions at the supports