Essential University Physics Volume 1, Loose Leaf Edition (4th Edition)
4th Edition
ISBN: 9780135264669
Author: Richard Wolfson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 14E
In Fig. 12.11 the forces shown all have the same magnitude F. For each case shown, is it possible to place a third force so as to meet both conditions for static equilibrium? If so, specify the force and a suitable application point. If not, why not?
FIGURE 12.11 Exercise 14
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A uniform rod is attached to a wall by a hinge at its base. The rod has a mass of 7.5 kg, a length of 2.3 m, is at an angle of 29° above the horizontal, and is held in place by a horizontal cord attached to
the other end of the rod and bolted to the wall above the base of the rod.
(a) Determine the tension in the cord.
63.715
X
Where is a convenient point about which to take the torques? See if you can write an expression for the torque in terms of the force producing the torque and the perpendicular distance from the
line of action of the force to the point about which we have specified to determine the torque. See if you can write a second condition of equilibrium that will allow you to determine the tension in
the cord. N
(b) Determine the horizontal and vertical components of the force exerted on the rod by the hinge.
36.788
X
FH = Now that you know the tension in the cord from part (a), see if you can write a first condition of equilibrium statement that will allow you to…
A uniform beam is 5.00 m long and has a mass of 53.0 kg. The beam is supported in a horizontal position by a hinge and a cable, with angle ? = 115°.(a) Draw all the forces acting on the beam.(b) What Newton’s Law will you use to solve this problem?(c) What is the tension ?? on the cable?(d) What are the magnitude of the vertical and horizontalforces acting on the hinge ???(e) What is the magnitude and direction of the torque ??exerted by the tension on the cable?
Consider a rigid steel beam of length L = 13 m and mass mb = 383 kg resting on two supports, one at each end. A worker of mass mw = 68 kg sits on the beam at a distance x from support A. Refer to the figure, though note that it is not drawn to scale.
1.) the force exerted on on the beam by support A is found to be 2180 N as wht distance x in meters from support A is the worker sitting now?
Chapter 12 Solutions
Essential University Physics Volume 1, Loose Leaf Edition (4th Edition)
Ch. 12.1 - The figure shows three pairs of forces acting on...Ch. 12.2 - Prob. 12.2GICh. 12.3 - The figure shows a person in static equilibrium...Ch. 12.4 - Prob. 12.4GICh. 12 - Give an example of an object on which the net...Ch. 12 - Give an example of an object on which the net...Ch. 12 - Prob. 3FTDCh. 12 - Pregnant women often assume a posture with their...Ch. 12 - When you carry a bucket of water with one hand,...Ch. 12 - Is a ladder more likely to slip when you stand...
Ch. 12 - How does a heavy keel help keep a boat from...Ch. 12 - Does choosing a pivot point in an equilibrium...Ch. 12 - If you take the pivot point at the application...Ch. 12 - A short dog and a tall person are standing on a...Ch. 12 - Prob. 11FTDCh. 12 - A body is subject to three forces; F1=1i+2jN,...Ch. 12 - To demonstrate that the choice of pivot point...Ch. 12 - In Fig. 12.11 the forces shown all have the same...Ch. 12 - Figure 12.12a shows a thin, uniform square plate...Ch. 12 - Repeat the preceding problem for the equilateral...Ch. 12 - A 23-m-long log of irregular cross section lies...Ch. 12 - A 60-kg uniform board 2.4 m long is supported by a...Ch. 12 - Where should the child in Fig. 12.14 sit if the...Ch. 12 - A 4.2-m-long beam is supported by a cable at its...Ch. 12 - Figure 12.15 shows how a scale with a capacity of...Ch. 12 - A portion of a roller-coaster track is described...Ch. 12 - Prob. 23ECh. 12 - Youre a highway safety engineer, and youre asked...Ch. 12 - Figure 12.17a shows an outstretched arm with mass...Ch. 12 - A uniform sphere of radius R is supported by a...Ch. 12 - You work for a garden equipment company, and youre...Ch. 12 - Figure 12.20 shows the fool and lower leg of a...Ch. 12 - A uniform 5.0-kg ladder is leaning against a...Ch. 12 - The boom in the crane of Fig. 12.21 is free to...Ch. 12 - A uniform board of length L and weight W is...Ch. 12 - Figure 12.23 shows a 1250-kg car that has slipped...Ch. 12 - Repeat Example 12.2, now assuming that the...Ch. 12 - You are headwaiter at a new restaurant, and your...Ch. 12 - Climbers attempting to cross a stream place a...Ch. 12 - A crane in a marble quarry is mounted on the...Ch. 12 - A rectangular block measures w w L, where L is...Ch. 12 - The potential energy as a function of position for...Ch. 12 - A rectangular block of mass m measures w w L,...Ch. 12 - A 160-kg highway sign of uniform density is 2.3 m...Ch. 12 - A 5.0-m-long ladder has mass 9.5 kg and is leaning...Ch. 12 - Prob. 42PCh. 12 - A uniform, solid cube of mass m and side s is in...Ch. 12 - An isosceles triangular block of mass m and height...Ch. 12 - Youre investigating ladder safety for the Consumer...Ch. 12 - A 2.0-m-long rod has density in kilograms per...Ch. 12 - What horizontal force applied at its highest point...Ch. 12 - A rectangular block twice as high as it is wide is...Ch. 12 - What condition on the coefficient of friction in...Ch. 12 - A uniform solid cone of height h and base diameter...Ch. 12 - Prove the statement in Section 12.1 that the...Ch. 12 - Three identical books of length L are stacked over...Ch. 12 - A uniform pole of mass M is at rest on an incline...Ch. 12 - For what angle does the situation in Problem 53...Ch. 12 - Figure 12.31 shows a popular system for mounting...Ch. 12 - The nuchal ligament is a thick, cordlike structure...Ch. 12 - A 4.2-kg plant hangs from the bracket shown in...Ch. 12 - The wheel in Fig. 12.34 has mass M and is weighted...Ch. 12 - An interstellar spacecraft from an advanced...Ch. 12 - Youre called to testify in a product liability...Ch. 12 - Youre designing a vacation cabin at a ski resort....Ch. 12 - Prob. 62PCh. 12 - Engineers designing a new semiconductor device...Ch. 12 - Youve been hired by your states environmental...Ch. 12 - Youve been hired by your states environmental...Ch. 12 - Youve been hired by your states environmental...Ch. 12 - Youve been hired by your states environmental...
Additional Science Textbook Solutions
Find more solutions based on key concepts
What are the two types of bone marrow, and what are their functions?
Human Anatomy & Physiology (2nd Edition)
What is the difference between cellular respiration and external respiration?
Human Physiology: An Integrated Approach (8th Edition)
1.1 Write a one-sentence definition for each of the following:
a. chemistry
b. chemical
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
All of the following terms can appropriately describe humans except: a. primary consumer b. autotroph c. hetero...
Human Biology: Concepts and Current Issues (8th Edition)
Distinguish between microevolution, speciation, and macroevolution.
Campbell Essential Biology (7th Edition)
With the initial appearance of the feature we call Now Solve This, a short introduction is in order. The featur...
Concepts of Genetics (12th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- The figure shows three boards clamped together. The center board weighs 93.5 N, and the coefficient of static friction between the boards is 0.490. What is the minimum magnitude of the horizontal compression forces (in N) acting on either side of the center board so it does not slip?arrow_forwardA uniform, 8.0-m, 1500-kg beam is hinged to a wall and supported by a thin cable attached 2.0 m from the free end of the beam. The beam is supported at an angle of 30° above the horizontal. (a) find the tension in the cable and (b) how hard does the beam push inward on the wall?arrow_forwardQuestion 15 (2 points) Which of the pictured rigid bodies cannot be in static equilibrium? A В Oc A Barrow_forward
- Subject: physarrow_forwardA 1220N uniform boom is supported by a cable perpendicular to the boom, as seen in the figure below. The boom is hinged at the bottom, and an m=2120N weight hangs from its top. Assume the angles to be a=60.7deg and 0=(90.0°- a). Ꮎ Ө ja m Find the tension in the supporting cable. Submit Answer Tries 0/10 Find the x-components of the reaction force exerted on the boom by the hinge (choose to the right as positive). Submit Answer Tries 0/10 Find the y-components of the reaction force exerted on the boom by the hinge (choose upwards as positive). Submit Answer Tries 0/10arrow_forwardA uniform platform with mass M=30kg and length L=15m is placed on two supports as shown. The distance between the supports is a=6m and F=340N is applied as shown with distance b=4m. The system is in static equilibrium. a) Find Normal force FN1 in Newtons. b) Find Normal force FN2 in Newtons.arrow_forward
- Standing on a Horizontal Beam A uniform horizontal beam with a length of = 9.10 m and a weight of W, = 225N is attached to a wall by a pin connection. Its far end is supported by a cable that makes an angle of = 45.0° with the beam (see figure). A person of weight W,- 650 N stands a distance d = 2.25 m from the wall. Find the tension in the cable as well as the magnitude and direction of the force exerted by the wall on the beam. (a) A uniform beam supported by a cable. A person walks outward on the beam. (b) The force diagram for the beam (c) The force diagram for the beam showing the components of RandT. Rsine Tsin ở Reos e w, Tcos d w, SOLUTION Conceptualize Imagine the person in figure (a) moves outward on the beam. It seems reasonable that the farther he moves outward, the larger the torque he applies about the pivot and the Select the tension in the cable must be to balance this torque. Categorize Because the system is at rest, we categorize the beam as a rigid object -Select-…arrow_forwardThe positive direccion are indicated in the figure. The 880kg concrete bucket is in static equilibrium and the force in cable BC is 8000 N. 1. Determine the x component of the force BC, BCx =__N 2. Determine the Y component of the force BC,BCy=__N 3.Determinate the component of the force BA,BAx =__ N 4.Determinate the component of the force BA,BAy=__N 5. Determine the magnitude of force BA = __N 6. Determine the angle of the force BA =__°arrow_forwardA 14.0 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 61.0°-angle with the horizontal. (a) Find the horizontal and vertical forces (in N) the ground exerts on the base of the ladder when an 830-N firefighter has climbed 4.10 m along the ladder from the bottom. horizontal force magnitude 830 X It may be helpful to think first about the force the wall exerts on the ladder. How is this related to the force that the ground exerts on the ladder? N towards the wall direction vertical force magnitude 1310 N direction up (b) If the ladder is just on the verge of slipping when the firefighter is 9.30 m from the bottom, what is the coefficient of static friction between ladder and ground? 0.201 X It may be helpful to think first about the force the wall exerts on the ladder. How is this related to the force that the ground exerts on the ladder? (c) What If? If oil is spilled on the ground, causing the coefficient of static friction to drop to half the value…arrow_forward
- A tightrope walker stands on a wire that is supported by a pole at each end. The tightrope walker creates a tension of 3.42 ✕ 103 N in a wire making an angle 6.2° below the horizontal with each supporting pole. Calculate how much this tension stretches the steel wire (in cm) if it was originally 16 m long and 0.50 cm in diameter. I asked this question THREE times and it was rejected the first two for being incomplete. It is not incomplete. There is no accompanying image. The third time, it was answered . . . incorrectly. I am very annoyed that I keep wasting my limited question attempts on ONE question that I am trying to understand how to do.arrow_forwardA lightweight diving board is supported by two pillars. One is at the end of the board and the other is 1.05 m away. A 75-kg person is standing on the board at such a location that the pillar at the end (pillar #1) of the board exerts a 860-N force downward. Determine the following. (a) distance the person is standing from the end pillar (pillar #1)______ m(b) magnitude of the upward force exerted by the second pillar (pillar #2)______ Narrow_forwardA 14.0 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 61.0°-angle with the horizontal. (a) Find the horizontal and vertical forces (in N) the ground exerts on the base of the ladder when an 830-N firefighter has climbed 4.10 m along the ladder from the bottom. horizontal force magnitude 483 X It may be helpful to think first about the force the wall exerts on the ladder. How is this related to the force that the ground exerts on the ladder? N towards the wall direction vertical force magnitude 1310 N direction up (b) If the ladder is just on the verge of slipping when the firefighter is 9.30 m from the bottom, what is the coefficient of static friction between ladder and ground? 0.604 It may be helpful to think first about the force the wall exerts on the ladder. How is this related to the force that the ground exerts on the ladder? (c) What If? If oil is spilled on the ground, causing the coefficient of static friction to drop to half the value…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
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...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Static Equilibrium: concept; Author: Jennifer Cash;https://www.youtube.com/watch?v=0BIgFKVnlBU;License: Standard YouTube License, CC-BY