Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7, Problem 6RQ
The first condition of equilibrium states that
a. all parallel forces must be zero.
b. all perpendicular forces must be zero.
c. all frictional forces must be zero.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
1) necessary condition for Rigid Body Static Equilibrium or Particle Static Equilibrium requires that the Rigid Body or the Particle experiences_________. A. only small forces
B. only large forces
C. no balanced forces
D. no unbalanced forces
2. Given three force vectors P, Q and R where:P = 300 N ?Q = 400 N ?R = 500 N ?What is the Magnitude of the Resultant of these three vectors?
A. 768 N
B. 430 N
C. 707 N
D. 1200 N
2. A car is parked on a slippery hill. The hill is at an angle of 150to the horizontal. To keep it from sliding down the hill, the owner attaches a cable at the back of the car and to a post. The mass of the car is 1.41 x103kg.
Write the equations for the conditions for static equilibrium along the horizontal and vertical directions.
Calculate the tension in the cable. Assume there is no friction between the road and the tires
A heavy weight is suspended by two ropes. Tension is greatest when the ropes
Select one:
a.make a small angle to the vertical.
b.are vertical.
c.are in any position since both share the total.
d.make a large angle to the vertical.
Chapter 7 Solutions
Applied Physics (11th Edition)
Ch. 7.1 - Find the sum of each set of forces acting at the...Ch. 7.1 - 703 N (right); 829 N (left); 125 N (left); 484 N...Ch. 7.1 - Forces of 225 N and 175 N act at the same point....Ch. 7.1 - Three forces with magnitudes of 225 N, 175 N, and...Ch. 7.1 - Prob. 5PCh. 7.1 - Find the sum of each set of vectors. Give angles...Ch. 7.1 - If forces of 1000N acting in a northerly direction...Ch. 7.1 - If two forces of 100N and 50.0 N, respectively,...Ch. 7.1 - Find the sum of each set of vectors. Give angles...Ch. 7.1 - Prob. 10P
Ch. 7.1 - Prob. 11PCh. 7.1 - Find the sum of each set of vectors. Give angles...Ch. 7.1 - Forces of F1 = 1150 N, F2 = 875 N, and F3 = 1450 N...Ch. 7.1 - Four forces, each of magnitude 2750 lb, act at the...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Five persons are having a tug-of-war. Kurt and...Ch. 7.2 - A certain wire can support 6450 lb before it...Ch. 7.2 - The frictional force of a loaded pallet in a...Ch. 7.2 - A bridge has a weight limit of 7.0 tons. How heavy...Ch. 7.2 - A tractor transmission weighing 260N and a...Ch. 7.2 - A skid loader lifts a compressor weighing 672 N...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - A rope is attached to two buildings and supports a...Ch. 7.2 - A rope is attached to two buildings and supports a...Ch. 7.2 - If the angles between the horizontal and the ropes...Ch. 7.2 - Find the tension in the horizontal supporting...Ch. 7.2 - Find the tension in the horizontal supporting...Ch. 7.2 - An automobile of mass 1550 kg is towed at a steady...Ch. 7.2 - A vehicle that weighs 16,200 N is parked on a 20.0...Ch. 7.2 - Find the tension in the cable and the compression...Ch. 7.2 - The crane shown in Fig. 7.26 is supporting a load...Ch. 7.2 - The crane shown in Fig. 7.27 is supporting a load...Ch. 7.3 - Given:F=16.0lbr=6.00ft=?Ch. 7.3 - Given:F=100Nr=0.420m=?Ch. 7.3 - Prob. 3PCh. 7.3 - Prob. 4PCh. 7.3 - Given:=65.4Nmr=35.0cmF=?Ch. 7.3 - Given:F=630Nr=74.0cm=?Ch. 7.3 - If the torque on a shaft of radius 2.37 cm is 38.0...Ch. 7.3 - If a force of 56.2 lb is applied to a torque...Ch. 7.3 - A motorcycle head bolt is torqued to 25.0 N m....Ch. 7.3 - A force of 112 N is applied to a shaft of radius...Ch. 7.3 - A torque of 175 lb ft is needed to free a large...Ch. 7.3 - A torque wrench reads 14.5 N m. If its length is...Ch. 7.3 - The torque on a shaft of radius 3.00 cm is 12.0 N...Ch. 7.3 - An engine bolt is torqued to 30.0 N m. If the...Ch. 7.3 - A mower bolt is torqued to 65.0 N m. If the length...Ch. 7.3 - An automobile bolt is torqued to 27.0 N m. If the...Ch. 7.3 - A torque wrench reads 25 lb ft. (a) If its length...Ch. 7.3 - If 13 N m of torque is applied to a bolt with an...Ch. 7.3 - If the torque required to loosen a nut on the...Ch. 7.3 - If the torque required to loosen a nut on the...Ch. 7.3 - A truck mechanic must loosen a rusted lug nut. If...Ch. 7.3 - An agricultural mechanic tries to loosen a nut on...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Prob. 9PCh. 7.4 - A 5000-lb truck is 20.0 ft from one end of a...Ch. 7.4 - Prob. 11PCh. 7.4 - An auto transmission of mass 165 kg is located...Ch. 7.4 - A bar 8.00 m long supports masses of 20.0 kg on...Ch. 7.4 - Two painters, each of mass 75.0 kg, stand on a...Ch. 7.4 - Two painters, one of mass 75.0 kg and the other...Ch. 7.4 - Two painters stand on a 10.00-m scaffold. One, of...Ch. 7.4 - An auto differential with a mass of 76.0 kg is...Ch. 7.4 - Prob. 18PCh. 7.5 - Solve for F1 : 30.0F1 = (14.0)(18.0) +...Ch. 7.5 - Solve for Fw : (12.0)(15.0) + 45.0Fw =...Ch. 7.5 - Two workers carry a uniform 15.0-ft plank that...Ch. 7.5 - Juan and Pablo carry a load weighing 720 N on a...Ch. 7.5 - A wooden beam is 3.30 m long and has its center of...Ch. 7.5 - An auto engine weighs 650lb and is located 4.00 ft...Ch. 7.5 - A bridge across a country stream weighs 89,200 N....Ch. 7.5 - A window washers scaffold 12.0 ft long and...Ch. 7.5 - A porch swing weighs 29.0 lb. It is 4.40 ft long...Ch. 7.5 - Prob. 10PCh. 7.5 - A bridge has a mass of 1.60 104 kg, is 21.0 m...Ch. 7.5 - A uniform steel beam is 5.00 m long and weighs 360...Ch. 7.5 - A wooden pole is 4.00 m long, weighs 315 N, and...Ch. 7.5 - A bridge has a mass of 2.60 104 kg, is 32.0 m...Ch. 7.5 - An auto engine of mass 295 kg is located 1.00 m...Ch. 7.5 - A 125-kg horizontal beam is supported at each end....Ch. 7.5 - Prob. 17PCh. 7.5 - The uniform bar in Fig. 7.49 is 5.00 m long and...Ch. 7.5 - Find the magnitude, direction, and placement (from...Ch. 7.5 - Find the magnitude, direction, and placement (from...Ch. 7 - Concurrent forces act at a. two or more different...Ch. 7 - The resultant force is a. the last force applied....Ch. 7 - A moving object a. can be in equilibrium. b. is...Ch. 7 - The study of an object in equilibrium is called a....Ch. 7 - Torque is a. applied force in rotational motion....Ch. 7 - The first condition of equilibrium states that a....Ch. 7 - In the second condition of equilibrium. a....Ch. 7 - The center of gravity of an object a. is always at...Ch. 7 - Is motion produced every time a force is applied...Ch. 7 - Prob. 10RQCh. 7 - Define equilibrium.Ch. 7 - In what direction does the force due to gravity...Ch. 7 - What may be said about concurrent forces whose sum...Ch. 7 - What is a force diagram?Ch. 7 - Is the length of the pedal necessarily the true...Ch. 7 - In your own words, explain the second condition of...Ch. 7 - What is the primary consideration in the selection...Ch. 7 - List three examples from daily life in which you...Ch. 7 - Is the center of gravity of an object always at...Ch. 7 - Prob. 20RQCh. 7 - Find the sum of the following forces acting at the...Ch. 7 - Forces of 275 lb and 225 lb act at the same point....Ch. 7 - Prob. 3RPCh. 7 - Prob. 4RPCh. 7 - Prob. 5RPCh. 7 - Forces of F1 = 1250 N, F2 = 625 N, and F3 = 1850 N...Ch. 7 - Eight people are involved in a tug-of-war. The...Ch. 7 - A bridge has a weight limit of 14.0 tons. What is...Ch. 7 - The x-components of three vectors are Fx, 375...Ch. 7 - If Wy=600N and Wx=900N, what are the magnitude and...Ch. 7 - Find forces F1 and F2 that produce equilibrium in...Ch. 7 - Prob. 12RPCh. 7 - Find the tension in the cable and the compression...Ch. 7 - Find the tension in each cable in Fig. 7.51.Ch. 7 - Find the tension in each cable in Fig. 7.52.Ch. 7 - Find the tension and the compression in Fig. 7.53.Ch. 7 - A man is changing a flat tire using a tire iron...Ch. 7 - A torque of 81.0 lb ft is produced by a torque arm...Ch. 7 - A hanging sign has mass 200kg. If the tension in...Ch. 7 - A scaffold supports a bricklayer and bricks...Ch. 7 - Two ladders at the ends of a scaffold support a...Ch. 7 - How far from the light end of a 68.0-cm bat would...Ch. 7 - A bridge has mass 8000kg. If a 3200-kg truck stops...Ch. 7 - If the truck in Problem 23 stops 7.00 m from one...Ch. 7 - A uniform 2.20-kg steel bar with length 2.70 m is...Ch. 7 - Find the vertical force needed to support the...Ch. 7 - A horizontal cable supports the boom of a crane....Ch. 7 - Archeologists in Egypt are attempting to open a...Ch. 7 - Sean and Greg are on a job site standing on two...Ch. 7 - Maria has severe arthritis and can apply a maximum...Ch. 7 - Kristas flagpole bracket is mounted at an angle of...Ch. 7 - Prob. 5AC
Additional Science Textbook Solutions
Find more solutions based on key concepts
At 0C, the hole in a steel washer is 9.52 mm in diameter. To what temperature must it be heated in order to fit...
Essential University Physics (3rd Edition)
Find ae gauge and absolute pressures in be balloon and peanut jar shown Figure 14.12, assuming be manometer con...
University Physics Volume 1
Modern roller coasters have vertical loops like the one shown in Figure 6.38. The radius of curvature is smalle...
College Physics
Whats the electric flux through the closed surfaces marked (a), (b), (c)., and (d) in Fig. 21.34? FIGURE 21.34 ...
Essential University Physics: Volume 2 (3rd Edition)
Atmospheric Mass of Earth. What is the total mass of Earth’s atmosphere? Use the fact that, under Earth’s gravi...
Life in the Universe (4th Edition)
S
10. FIGURE EX6.10 shows the velocity graph of a 2.0 kg object as it moves along the x-axis. What is the net ...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th 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
- 1. The structure shown is pinned to the floor at A and H. Determine the magnitude of all the support forces acting on the structure and find the force in member BF.arrow_forward3. A picture frame hung against a wall is suspended by two wires attached to its upper corners. If the two wires make the same angle with the vertical, what must this angle be if the tension in each wire is equal to 0.75 of the weight of the frame? (Neglect any friction between the wall and the picture frame.)arrow_forward6. A 3 m ladder leaning on the frictionless wall. The coefficient of static friction between the ladder and the floor is 0.40. What is the minimum angle the ladder can make with the floor without slipping? a) 27° b) 34° c) 38° d) 42° e) 46°arrow_forward
- 1( End A of horizontal slender rod AB presses against a rough vertical wall because it is supported by cord BC that makes angle 0 with the rod. The rod has length L, weight W, and is of uniform composition. What is the minimum value of the coefficient of static friction u that will maintain the rod in equilibrium? C A) tan 0 (cos 0)? C) D) sin O tan 0 -sin Lsin e W Larrow_forward14. A ladder is propped against a wall making an angle with the floor. The wall is fictionless but the coeficients of friction for the floor are u, and µg respectively. Obtain an expression for the smallest that can be if the ladder is not to slip. Recall that tan® = sin®/cose.arrow_forwardDetermine the magnitude of the force P required to hold the 110-lb weight in equilibrium.arrow_forward
- 9. Calculate the y-coordinate of the point on the y-axis through which the resultant of the three forces and couple must pass. 60 N m 100 N 200 mm 30 300 mm 600 N 400 mm 100 Narrow_forward13. A weight of 325 Newtons is suspended from three wires as shown below. Determine the magnitude of the tension in each wire if the system is in equilibrium. Answers: T1= 310-N, T2= 165-N, T3= 325-N 60 degrees 20 degrees T1 T2 T3 325 Narrow_forward23. Two cables are to support an object suspended from a ceiling. If the cables are each to make a 42° angle with the ceiling, and each individual cable is rated to withstand a maximum tension of 100 pounds, what is the heaviest object that can be supported? Could these cables be used to support a 70 lb pumpkin?arrow_forward
- Determine the horizontal force P required to cause slippage to occur. The friction coefficients for the three pairs of mating surfaces are indicated. The top block is free to move vertically.arrow_forwardWhich of the following statements about supports is true? O A. A roller support permits motion on both the horizontal and vertical axes. O B. A hinge support inhibits motion on both the horizontal and vertical axes. O C. A hinge support should always have a non-zero magnitude of the x-component of the reaction force, Ry. O D. Both B and C are true. O E. none of the choicesarrow_forwardA vertical load of 100N, in equilibrium, is supported by two ropes, A and B, in the same vertical plane. The tension in B is 40N and acts in a line at 30° to the vertical axis. Determine the tension in rope A and the angle between the two ropes A and B. 30° 402/4 68.350 47° İDON X 9.81.981 Narrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction 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 LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege 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
Newton's First Law of Motion: Mass and Inertia; Author: Professor Dave explains;https://www.youtube.com/watch?v=1XSyyjcEHo0;License: Standard YouTube License, CC-BY