Calculate the force and moment reactions at the bolted base O of the overhead traffice-signal assembly. Each traffic signal has a mass of 25 kg, while the masses of members OC and AC are 81 kg and 72 kg, respectively. Positive answers are to the right, up, and counterclockwise. 25 kg Answers: Ox= Oy= Mo= 0 1.99 i 7.66 5.8 m 25 kg B 1.0 m kN G kN kN.m 72 kg 4.8 m 81 kg C 7 m

Calculate the force and moment reactions at the bolted base O of the overhead traffice-signal assembly. Each traffic signal has a mass of 25 kg, while the masses of members OC and AC are 81 kg and 72 kg, respectively. Positive answers are to the right, up, and counterclockwise. 25 kg Answers: Ox= Oy= Mo= 0 1.99 i 7.66 5.8 m 25 kg B 1.0 m kN G kN kN.m 72 kg 4.8 m 81 kg C 7 m

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 5.50RP: The 180-lb homogeneous bar is supported by a ball-and-socket joint at A and two cables attached to...

See similar textbooks

Similar questions

The homogeneous 240-lb bar is supported by a rough horizontal surface at A, a smooth vertical surface at B, and the cable BC. Draw the FBD of the bar and count the unknowns.
The 180-lb homogeneous bar is supported by a ball-and-socket joint at A and two cables attached to B. Determine the forces in the cables.
The 180-kg uniform boom ABC, supported by a horizontal cable at B and a pin at A, carries a 320-kg load at C. Determine the force in the cable and the magnitude of the pin reaction.
The homogeneous plate of weight W is supported by a ball-and-socket joint at D and three wires. Draw the FBD of the plate and count the unknowns.
The three bars are welded together to form a rigid unit that is supported by three slider bearings. Neglecting the weights of the bars, determine the magnitudes of the three bearing reactions caused by the 120-lbin. couple.
For Probs. 4.61â€“4.68, (a) draw the free-body diagrams for the entire assembly (or structure) and each of its parts. Neglect friction and the weights of the members unless specified otherwise. Be sure to indicate all relevant dimensions. For each problem, (b) determine the total number of unknown forces and the total number of independent equilibrium equations.
The two uniform cylinders, each of weight W, are resting against inclined surfaces. Neglecting friction, draw the free-body diagrams for each cylinder and for the two cylinders together. Count the total number of unknowns and the total number of independent equilibrium equations.
The 80-lb homogeneous plate is supported by a ball-and-socket joint at A, a slider hearing at B, and the cable CE. A 120-lb vertical force is applied to the corner D. Determine the force in the cable and the magnitude of the bearing reaction at B.
Determine the contact force between the smooth 90-kg ball B and the horizontal bar, and the magnitude of the pin reaction at A. Neglect the weights of the bar and the pulley.