![Fundamentals of Physics, Volume 1, Chapter 1-20](https://www.bartleby.com/isbn_cover_images/9781118233764/9781118233764_largeCoverImage.gif)
Fundamentals of Physics, Volume 1, Chapter 1-20
10th Edition
ISBN: 9781118233764
Author: David Halliday
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 12, Problem 72P
The system in Fig. 12-77 is in equilibrium. The angles are θ1 = 60° and θ2 = 20°, and the ball has mass M = 2.0 kg. What is the tension in (a) string ab and (b) string bc?
Figure 12-77 Problem 72.
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
11-30 Two blocks are suspended on a continuous inex-
tensible cord as shown in Fig. P11-30. Determine the angle
O for equilibrium if the masses of blocks A and B are 50 and
40 kg, respectively.
Fig. P11-30
Member AB is supported at B by a cable and at A by a smooth fixed square rod which fits loosely
through the square hole of the collar. If F = {20i - 40j - 75k} lb, determine the x, y, z components of
reaction at A and the tension in the cable.
12 ft
8 ft
6 ft
4 ft
Structural member AB is to be supported by a strut CD. Determine the smallest length CD may have, and specify where D must be
located for a strut of this length to be used. Take x= 120 mm.
60 mm
D.
y
20 mm
E
The smallest length CD may have is
mm.
The coordinates of point Dare (
and
Imm.
Chapter 12 Solutions
Fundamentals of Physics, Volume 1, Chapter 1-20
Ch. 12 - Figure 12-15 shows three situations in which the...Ch. 12 - In Fig, 12-16, a rigid beam is attached to two...Ch. 12 - Figure 12-17 shows four overhead views of rotating...Ch. 12 - A ladder leans against a frictionless wall but is...Ch. 12 - Figure 12-18 shows a mobile of toy penguins...Ch. 12 - Figure 12-19 shows an overhead view of a uniform...Ch. 12 - In Fig. 12-20, a stationary 5 kg rod AC is held...Ch. 12 - Three piatas hang from the stationary assembly of...Ch. 12 - In Fig. 12-22, a vertical rend is hinged at its...Ch. 12 - Figure 12-23 shows a horizontal block that is...
Ch. 12 - The table gives the initial lengths of three reds...Ch. 12 - A physical therapist gone wild has constructed the...Ch. 12 - Prob. 1PCh. 12 - An automobile with a mass of 1360 kg has 3.05 m...Ch. 12 - SSM WWWIn Fig. 12-26, a uniform sphere of mass m =...Ch. 12 - An archers bow is drawn at its midpoint until the...Ch. 12 - ILWA rope of negligible mass is stretched...Ch. 12 - A scaffold of mass 60 kg and Length 5.0 m is...Ch. 12 - A 75 kg window cleaner uses a 10 kg ladder that is...Ch. 12 - A physics Brady Bunch, whose weights in newtons...Ch. 12 - SSMA meter stick balances horizontally on a...Ch. 12 - GO The system in Fig. 12-28 is in equilibrium,...Ch. 12 - SSMFigure 12-29 shows a diver of weight 580 N...Ch. 12 - In Fig. 12-30, trying to gel his car out of mud, a...Ch. 12 - Figure 12-31 shows the anatomical structures in...Ch. 12 - In Fig. 12-32, a horizontal scaffold, of length...Ch. 12 - ILWForces F1, F2 and F3 act on the structure of...Ch. 12 - A uniform cubical crate is 0.750 m on each side...Ch. 12 - In Fig. 12-34, a uniform beam of weight 500 N and...Ch. 12 - GO In Fig. 12-35, horizontal scaffold 2, with...Ch. 12 - To crack a certain nut in a nutcracker, forces...Ch. 12 - A bowler holds a bowling ball M = 7.2 kg in the...Ch. 12 - ILWThe system in Fig. 12-38 is in equilibrium. A...Ch. 12 - GO In Fig-12-39, a 55 kg rock climber is in a...Ch. 12 - GO In Fig. 12-40, one end of a uniform beam of...Ch. 12 - GO In Fig. 12-41, a climber with a weight of 533.8...Ch. 12 - SSM WWWIn Fig. 12-42, what magnitude of constant...Ch. 12 - GO In Fig. 12-43, a climber leans out against a...Ch. 12 - GO In Fig. 12-44, a 15 kg block is held in place...Ch. 12 - GO In Fig. 12-45, suppose the length L of the...Ch. 12 - A door has a height of 2.1 m along a y axis that...Ch. 12 - GO In Fig. 12-46, a 50.0 kg uniform square sign,...Ch. 12 - GO In Fig. 12-47, a nonuniform bar is suspended at...Ch. 12 - In Fig. 12-48, the driver of a car on a horizontal...Ch. 12 - Figure 12-49a shows a vertical uniform beam of...Ch. 12 - In Fig. 12-45, a thin horizontal bar AB of...Ch. 12 - SSM WWWA cubical box is filled with sand and...Ch. 12 - Figure 12-50 shows a 70 kg climber hanging by only...Ch. 12 - GO In Fig. 12-51, a uniform plank, with a length L...Ch. 12 - In Fig, 12-52, uniform beams A and B are attached...Ch. 12 - For the stepladder shown in Fig. 12-53, sides AC...Ch. 12 - Figure 12-54a shows a horizontal uniform beam of...Ch. 12 - A crate, in the form of a cube with edge lengths...Ch. 12 - In Fig. 12-7 and the associated sample problem,...Ch. 12 - SSM ILWA horizontal aluminum rod 4.8 cm in...Ch. 12 - Figure 12-55 shows the stressstrain curve for a...Ch. 12 - In Fig. 12-56, a lead brick rests horizontally on...Ch. 12 - Figure 12-57 shows an approximate plot of stress...Ch. 12 - A tunnel of length L = 150 m, height H = 7.2 m,...Ch. 12 - Figure 12-59 shows the stress versus strain plot...Ch. 12 - GO In Fig. 12-60, a 103kg uniform log hangs by two...Ch. 12 - GO Figure 12-61 represents an insect caught at the...Ch. 12 - GO Figure 12-62 is an overhead view of a rigid rod...Ch. 12 - After a fall, a 95 kg rock climber finds himself...Ch. 12 - SSMIn Fig 12-63, a rectangular slab of slate rests...Ch. 12 - A uniform ladder whose length is 5.0 m and whose...Ch. 12 - SSM In Fig. 12-64, block A mass 10 kg is in...Ch. 12 - Figure 12-65a shows a uniform ramp between two...Ch. 12 - GO In Fig. 12-66, a 10 kg sphere is supported on a...Ch. 12 - In Fig. 12-67a, a uniform 40.0 kg beam is centered...Ch. 12 - SSM In Fig. 12-68, an 817 kg construction bucket...Ch. 12 - In Fig. 12-69, a package of mass m hangs from a...Ch. 12 - ILWThe force F in Fig. 12-70 keeps the 6.40 kg...Ch. 12 - A mine elevator is supported by a single steel...Ch. 12 - Four bricks of length L, identical and uniform,...Ch. 12 - Prob. 64PCh. 12 - In Fig. 12-73, a uniform beam with a weight of 60...Ch. 12 - A uniform beam is 5.0 m long and has a mass of 53...Ch. 12 - A solid copper cube has an edge length of 85.5 cm....Ch. 12 - A construction worker attempts to lift a uniform...Ch. 12 - SSM In Fig. 12-76, a uniform rod of mass m is...Ch. 12 - A 73 kg man stands on a level bridge of length L....Ch. 12 - SSMA uniform cube of side length 8.0 cm rests cm a...Ch. 12 - The system in Fig. 12-77 is in equilibrium. The...Ch. 12 - SSMA uniform ladder is 10 m long and weighs 200 N....Ch. 12 - A pan balance is made up of a rigid, massless rod...Ch. 12 - The rigid square frame in Fig. 12-79 consists of...Ch. 12 - A gymnast with mass 46.0 stands on the end of a...Ch. 12 - Figure 12-81 shows a 300 kg cylinder that is...Ch. 12 - In Fig. 12-82, a uniform beam of length 12.0 m is...Ch. 12 - Four bricks of length L, identical and uniform,...Ch. 12 - A cylindrical aluminum rod, with an initial length...Ch. 12 - Prob. 81PCh. 12 - If the square beam in Fig. 12-6a and the...Ch. 12 - Figure 12-84 shows a stationary arrangement of two...Ch. 12 - A makeshift swing is constructed by makings loop...Ch. 12 - Figure 12-85a shows details of a finger in the...Ch. 12 - A trap door in a ceiling is 0.91 m square, has a...Ch. 12 - A particle is acted on by forces given, in...Ch. 12 - The leaning Tower of Pisa is 59.1 m high and 7.44...
Additional Science Textbook Solutions
Find more solutions based on key concepts
9. (II) What, approximately, is the percent uncertainty for a measurement given as 1.57 m2?
Physics: Principles with Applications
1. When is energy most evident?
Conceptual Physics (12th Edition)
The magnitude of the electric field.
Sears And Zemansky's University Physics With Modern Physics
4. 4 If a sinusoidal electromagnetic wave with intensity 10 W/m2 has an electric field of Amplitude E, then a 2...
College Physics (10th Edition)
A 75.0-kg person climbs stairs, gaining 2.50 m in height. Find the work done to accomplish this task.
University Physics Volume 1
14. FIGURE Q4.14 shows four rotating wheels. For each, determine the signs (+ or -) of w and a.
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
- Ex 79 : A bar of length 200 cm is supported at its two ends. The breadth and depth of bar are 10 cm and 2 cm respectively. A mass of 150 gm suspended at the centre of bar. Compute the depression produced in the bar. (Y = 4 × 1010 %3D N/m²)arrow_forwardA copper metal cube has each side of length 1m. The bottom edge of the cube is fixed and tangential force 4.2 x 10° N is applied a top surface. Calculate the lateral displacement of the top surface, if modulus of rigidity of copper is 14 x 1010 N/m? toarrow_forward51. ssm A tow truck is pulling a car out of a ditch by means of a steel cable that is 9.1 m long and has a radius of 0.50 cm. When the car just begins to move, the tension in the cable is 890 N. How much has the cable stretched?arrow_forward
- A rigid bar of mass M is supported symmetrically by three wires each of length l. Those at each end are ofcopper and the middle one is of iron. The ratio of their diameter, if each is to have the same tension, is equal to (a)YcopperYiron(b) √YironY copper(c)Yiron2Ycopper2(d)YironYcopperarrow_forwardGiven the truss below what are the internal force members of members BF, AB and AD. Determine whether compression or tension. |– 3 m →— 4 m —✦✦3 m →| B с A 60 kN FAB = Blank 1 kN FAD = Blank 2 kN FBF = Blank 3 kN E D + 3 m 4 m 3 m Iarrow_forwardIf three coplanar concurrent forces acting at a point be in equilibrium, then each force is proportional to the sine of the angle between the other two. F F, F sin B sin y %3D sin a F, 10arrow_forward
- The man has a weight W and stands at the center of the plank. If the planes at A and B are smooth, determine the tension in the cord in terms of W and θ.arrow_forwardThe system in the figure is in equilibrium. A concrete block of mass 345 kg hangs from the end of the uniform strut of mass 56.1 kg. For angles o = 38.4° and 0 = 53.3°, find (a) the tension Tin the cable and the (b) horizontal and (c) vertical components of the force on the strut from the hinge. Strut -Hinge (a) Number i Units N (b) Number i ! Units N (c) Number i ! Units Narrow_forwardPart of a control linkage for an airplane consists of a rigid member CB and a flexible cable AB. If a force is applied to the end B of the member and causes it to rotate by u = 0.5°, determine the normal strain in the cable. Originally the cable is unstretched.arrow_forward
- A cable stretched between the fixed supports A and B is under a tension T of 1.6 kN. Express the tension as a vector using the unit vectors i and j, first, as a force TA acting on A and second, as a force Tg acting on B. 460 mm А y 340 mm Answers: TA = ( b) kN i+ Tg = ( b) kNarrow_forwardThe principal forces at a point p of an elastic body are o(¹)-50N/cm², o(2)=-50N/cm² and 3)-75N/cm². Find the stress vector t(n), the normal stress on, and the shear stress or for a plane that is equally inclined with respect to the principal axes. P Barrow_forwardThe cord passing over the two small pegs A and B on the board is subjected to a tension of 10 lb. Determine the minimum tension P and the orientation u of the cord passing over pegs C and D, so that the resultant couple produced by both cords is 20 lb in. clockwise. -P 10 lb 30° A 15 in. 45° 15 in. B D 30° 10 lb 0 Parrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781133939146/9781133939146_smallCoverImage.gif)
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Static Equilibrium: concept; Author: Jennifer Cash;https://www.youtube.com/watch?v=0BIgFKVnlBU;License: Standard YouTube License, CC-BY