Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 14SP
An essentially weightless rope is slung over a lightweight frictionless pulley that is attached to a ceiling. A 20.0-kg mass is hung from one end of the rope, and a student holds the other end, keeping the system in equilibrium. What force must she pull with? In what direction? What is the value of the tension in the rope? Determine the total downward force on the ceiling.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A bag of cement with a mass of 100kg hangs in equilibrium from three wires as shown in the figure . Two of the wires make angles θ1=40 and θ2=30 with the horizontal. Assuming the system is in equilibrium,
a. What is the magnitude of tension in string 1
b. What is the magnitude of tension in string 2
The figure below shows a bird feeder that weighs 158.9 N. The feeder is supported by a vertical cable, which is in turn tied to two cables, each of which is attached to a horizontal post. The left cable makes a 60° angle with the post, while the right cable makes a 30° angle. What is the tension in each cable (in N)?
left cable N
Right cable N
bottom cable N
The figure below shows a bird feeder that weighs 177.7 N. The feeder is supported by a vertical wire, which is in turn tied to two wires, each of which is attached to a horizontal support. The left wire makes a 60° angle with the support, while the right wire makes a 30° angle. What is the tension in each wire (in N)?
left wire= ? N
right wire= ?N
bottom wire= ?N
Chapter 4 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 4 - 4.9 [I] A person stands on a scale, which then...Ch. 4 - 4.10 [I] Two evenly matched teams of youngsters...Ch. 4 - 4.11 [I] A rope is tied to a hook fastened to a...Ch. 4 - 4.12 [I] An essentially weightless pulley that is...Ch. 4 - 4.13 [I] An essentially weightless rope is slung...Ch. 4 - 4.14 [I] An essentially weightless rope is slung...Ch. 4 - 4.15 [I] A 2.00-kg block rests on a frictionless...Ch. 4 - 4.16 [I] The load in Fig. 4-7 is hanging at rest....Ch. 4 - 4.17 [I] (a) A 600-N load hangs motionlessly in...Ch. 4 - 4.18 [I] For the situation shown in Fig. 4-9, find...
Ch. 4 - 19. The following coplanar forces pull on a ring:...Ch. 4 - 4.20 [II] In Fig. 4-10, the pulleys are...Ch. 4 - 4.21 [II] Suppose in Fig. 4-10 is 500 N. Find the...Ch. 4 - 4.22 [I] If in Fig. 4-11 the friction between the...Ch. 4 - 4.23 [II] The system in Fig. 4-11 remains at rest...Ch. 4 - 24. Find the normal force acting on the block in...Ch. 4 - 25. The block depicted Fig. 4-12(a) slides with...Ch. 4 - 26. The block shown in Fig. 4-12(b) slides at a...Ch. 4 - 27. The block in Fig. 4-12(c) just begins to slide...Ch. 4 - 4.28 [II] If in the equilibrium situation shown...Ch. 4 -
29. Refer to the equilibrium situation shown in...Ch. 4 - 4.30 [III] The hanging object in Fig. 4-14 is in...Ch. 4 - 31. The pulleys shown in Fig. 4-15 have negligible...Ch. 4 - 4.32 [III] In Fig. 4-16, the system is at rest....Ch. 4 - 4.33 [III] The block in Fig. 4-16 is just on the...
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
- An iron bolt of mass 65.0 g hangs from a string 35.7 cm long. The top end of the string is fixed. Without touching it, a magnet attracts the bolt so that it remains stationary, but is displaced horizontally 28.0 cm to the tight from the previously vertical line of the string. The magnet is located to the right of the bolt and on the same vertical level as the bolt in the final configuration. (a) Draw a free-body diagram of the bolt. (b) Find the tension in the string, (c) Find the magnetic force on the bolt.arrow_forwardYou are analyzing an Atwood machine with masses m1 and m2 connected over a pulley by a massless unstretchable string. The left-hand mass, m1, rests on an inclined plane forming an angle q with the horizontal direction. Find the acceleration of the masses and the tension in the string. m1 m2 theta 2 5 30arrow_forwardA mass M of 10 kg hangs from three wires as shown in Figure. If the system is in equilibrium, find the tensions in the wire-1 and wire-2 if α=30o and β=53o . cos30o =sin60o=0.866 cos60o =sin30o=0.500 sin53o=cos37o=0.8 sin37o=cos53o=0.6 g=9.8 m/s2arrow_forward
- A m1 = 5.3 kg box is on a frictionless θ = 39∘ slope and is connected via a massless string over a massless, frictionless pulley to a hanging m2= 2.3 kg weight. What is the tension in the string once the box begins to move?arrow_forwardAn object is suspended from two cables that meet at a point above the object. One cable pulls with a force modeled by F1 = −77i + 35j. The other cable pulls with a force modeled by F2 = 92i + 84j. What is the angle between the cables? Round to the nearest degree. a 119° b 71° c 105° d 113°arrow_forwardA window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 202 N and is 2.8 m long. What is the tension in each rope when the 706–N worker stands 1.20 m from one end? SMALLER TENSION= _______N LARGER TENSION= ________Narrow_forward
- m1 = 20 kg, determine the mass of m2 which will cause the system to stay in equilibrium. The pulley does nothing other than change the direction of the force from the hanging mass.arrow_forwardA 4 kg watermelon is placed at one end of a 3.5 m, 271 N scaffolding supported by two cables. One supporting cable is at the opposite end of the scaffolding, and the other is 0.65 m from the watermelon. a) How much tension is in the cable at the end of the scaffolding? The acceleration of gravity is 9.8 m/s 2 . Answer in units of N. b) How much tension is in the cable closest to the watermelon?arrow_forwardA person pulls at an angle of 0 = 34.0° on three connected crates of masses m¡ = 25.0 kg, m2 = 18.0 kg, and Pull m3 = 15.0 kg over a smooth horizontal floor, as shown in A В the figure. The crates are connected to each other by m, m, m3 identical massless, horizontal strings A and B, each of which can support a maximum tension of 45.0 N before breaking. What is the magnitude F, of the largest pulling force that can be exerted without breaking either of the strings?arrow_forward
- A 2.0 kg ball is suspended by two light strings as shown. What is the tension T in the angled string?A. 9.5 N B. 15 NC. 20 N D. 26 NE. 30 Narrow_forwardA window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 192 N and is 3.1 m long. What is the tension in each rope when the 710–N worker stands 1.06 m from one end? Smaller tension? Larger tension?arrow_forwardA dockworker adjusts rope which keeps a ship from drifting alongside a wharf. If he exerts a pull of 200 N on the rope, which has turns of 1 ¼ around the mooring bit, what force T can he support? The coefficient of friction between the rope and the cast-steel mooring bit is 0.30arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
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