4 (a) Define moment of a force. (b) An arrangement for lifting heavy loads is shown in Fig. 4.1. 60 wall B beam 2.8mm/ 30 load 500 N 4000 N Fig. 4.1 A uniform metal beam AB is pivoted on a vertical wall at A. The beam is supported by a wire joining end B to the wall at C. The beam makes an angle of 30 with the wall and the wire makes an angle of 60 with the wall. The beam has length 2.8m and weight of 500 N. A load of 4000 N is supported from B. The tension in the wire is T. The beam is in equilibrium. (1) By taking moments about A, show that Tis 2.1 kN. [2] (II) Calculate the vertical component T, of the tension T. T₁ = . N[1] (ii) State and explain why T, does not equal the sum of the load and the weight of the beam although the beam is in equilibrium. ..121

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
Question
4 (a) Define moment of a force.
(b) An arrangement for lifting heavy loads is shown in Fig. 4.1.
60
wall
B
beam
2.8mm/
30
load
500 N 4000 N
Fig. 4.1
A uniform metal beam AB is pivoted on a vertical wall at A. The beam is supported by a wire
joining end B to the wall at C. The beam makes an angle of 30 with the wall and the wire
makes an angle of 60 with the wall.
The beam has length 2.8m and weight of 500 N. A load of 4000 N is supported from B. The
tension in the wire is T. The beam is in equilibrium.
(1) By taking moments about A, show that Tis 2.1 kN.
[2]
(II) Calculate the vertical component T, of the tension T.
T₁ = .
N[1]
(ii) State and explain why T, does not equal the sum of the load and the weight of the beam
although the beam is in equilibrium.
..121
Transcribed Image Text:4 (a) Define moment of a force. (b) An arrangement for lifting heavy loads is shown in Fig. 4.1. 60 wall B beam 2.8mm/ 30 load 500 N 4000 N Fig. 4.1 A uniform metal beam AB is pivoted on a vertical wall at A. The beam is supported by a wire joining end B to the wall at C. The beam makes an angle of 30 with the wall and the wire makes an angle of 60 with the wall. The beam has length 2.8m and weight of 500 N. A load of 4000 N is supported from B. The tension in the wire is T. The beam is in equilibrium. (1) By taking moments about A, show that Tis 2.1 kN. [2] (II) Calculate the vertical component T, of the tension T. T₁ = . N[1] (ii) State and explain why T, does not equal the sum of the load and the weight of the beam although the beam is in equilibrium. ..121
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON