Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN: 9781305116399
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 5, Problem 5.10CQ
Twenty people participate in a tug-of-war. The two teams of ten people are so evenly matched that neither team wins. After the game they notice that a car is stuck in the mud. They attach the tug-of-war rope to the bumper of the car, and all the people pull on the rope. The heavy car has just moved a couple of decimeters when the rope breaks. Why did the rope break in this situation when it did not break when the same twenty people pulled on it in a tug-of-war?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Two people are pushing a truck across a parking lot. The truck has a mass of about 2 × 10 kg. First, they take turns pushing. When Person A pushes the truck, the truck accelerates at a rate of 1 m/s?. When Person B pushes the truck, it accelerates at a rate of 2 m/s?(a) Both people stand behind the truck and push in the same direction. What is the net force on the truck? At what rate will the truck accelerate?(b) Person A stands at the back of the truck and Person B stands at the front, and they push in opposite directions. What is the net force on the truck? At what rate will the truck accelerate? In what direction?For both (a) and (b), draw a picture indicating the forces applied by A and B as well as the motion of the truck.
A 3 kg and a 5 kg box rest side-by-side on a smooth, level floor. A horizontal force of 32 N is applied to the 3 kg box pushing it against the 5 kg box, and, as a result, both boxes slide along the floor. What is the magnitude of the contact force between the two boxes? Assume no friction.
Two people are pushing a truck across a parking lot. The truck has a mass of about 2 × 103 kg.
First, they take turns pushing. When Person A pushes the truck, the truck accelerates at a rate of 1 m/s2. When Person
B pushes the truck, it accelerates at a rate of 2 m/s?.
(a) Both people stand behind the truck and push in the same direction. What is the net force on the truck? At what
rate will the truck accelerate?
(b) Person A stands at the back of the truck and Person B stands at the front, and they push in opposite directions.
What is the net force on the truck? At what rate will the truck accelerate? In what direction?
For both (a) and (b), draw a picture indicating the forces applied by A and B as well as the motion of the truck.
Chapter 5 Solutions
Physics for Scientists and Engineers, Technology Update (No access codes included)
Ch. 5 - Which of the following statements is correct? (a)...Ch. 5 - An object experiences no acceleration. Which of...Ch. 5 - You push an object, initially at rest, across a...Ch. 5 - Suppose you are talking by interplanetary...Ch. 5 - (i) If a fly collides with the windshield of a...Ch. 5 - You press your physics textbook flat against a...Ch. 5 - Charlie is playing with his daughter Toney in the...Ch. 5 - The driver of a speeding empty truck slams on the...Ch. 5 - In Figure OQ5.2, a locomotive has broken through...Ch. 5 - The third graders are on one side of a schoolyard,...
Ch. 5 - The driver of a speeding truck slams on the brakes...Ch. 5 - An experiment is performed on a puck on a level...Ch. 5 - The manager of a department store is pushing...Ch. 5 - Two objects are connected by a siring that passes...Ch. 5 - An object of mass m is sliding with speed v, at...Ch. 5 - A truck loaded with sand accelerates along a...Ch. 5 - A large crate of mass m is place on the flatbed of...Ch. 5 - If an object is in equilibrium, which of the...Ch. 5 - A crate remains stationary after it has been...Ch. 5 - An object of mass m moves with acceleration a down...Ch. 5 - If you hold a horizontal metal bar several...Ch. 5 - Your hands are wet, and the restroom towel...Ch. 5 - In the motion picture It Happened One Night...Ch. 5 - If a car is traveling due westward with a constant...Ch. 5 - A passenger sitting in the rear of a bus claims...Ch. 5 - A child tosses a ball straight up. She says that...Ch. 5 - A person holds a ball in her hand, (a) Identify...Ch. 5 - A spherical rubber balloon inflated with air is...Ch. 5 - A rubber ball is dropped onto the floor. What...Ch. 5 - Twenty people participate in a tug-of-war. The two...Ch. 5 - Can an object exert a force on itself? Argue for...Ch. 5 - When you push on a box with a 200-N force instead...Ch. 5 - A weight lifter stands on a bathroom scale. He...Ch. 5 - An athlete grips a light rope that passes over a...Ch. 5 - Suppose you are driving a classic car. Why should...Ch. 5 - In Figure CQ5.16, the light, taut, unstretchable...Ch. 5 - Describe two examples in which the force of...Ch. 5 - The mayor of a city reprimands some city employees...Ch. 5 - Give reasons for the answers to each of the...Ch. 5 - Balancing carefully, three boys inch out onto a...Ch. 5 - Identity action-reaction pairs in the following...Ch. 5 - As shown in Figure CQ5.22, student A, a 55-kg...Ch. 5 - Prob. 5.23CQCh. 5 - A certain orthodontist uses a wire brace to align...Ch. 5 - If a man weighs 900 N on the Earth, what would he...Ch. 5 - A 3.00-kg object undergoes an acceleration given...Ch. 5 - A certain orthodontist uses a wire brace to align...Ch. 5 - A toy rocket engine is securely fastened to a...Ch. 5 - The average speed of a nitrogen molecule in air is...Ch. 5 - The distinction between mass and weight was...Ch. 5 - (a) A cat with a mass of 850 kg in moving to the...Ch. 5 - Review. The gravitational force exerted on a...Ch. 5 - Review. The gravitational force exerted on a...Ch. 5 - Review. An electron of mass 9. 11 1031 kg has an...Ch. 5 - Besides the gravitational force, a 2.80-kg object...Ch. 5 - One or more external forces, large enough to be...Ch. 5 - A brick of mass M has been placed on a rubber...Ch. 5 - Two forces, F1=(6.00i4.00j)N and...Ch. 5 - The force exerted by the wind on the sails of a...Ch. 5 - An object of mass m is dropped al t = 0 from the...Ch. 5 - A force F applied to an object of mass m1,...Ch. 5 - Two forces F1 and F2 act on a 5.00-kg object....Ch. 5 - You stand on the seat of a chair and then hop off....Ch. 5 - A 15.0-lb block rests on the floor. (a) What force...Ch. 5 - Review. Three forces acting on an object are given...Ch. 5 - A 1 00-kg car is pulling a 300-kg trailer....Ch. 5 - If a single constant force acts on an object that...Ch. 5 - Review. Figure P5.15 shows a worker poling a boata...Ch. 5 - An iron bolt of mass 65.0 g hangs from a string...Ch. 5 - Figure P5.27 shows the horizontal forces acting on...Ch. 5 - The systems shown in Figure P5.28 are in...Ch. 5 - Assume the three blocks portrayed in Figure P5.29...Ch. 5 - A block slides down a frictionless plane having an...Ch. 5 - The distance between two telephone poles is 50.0...Ch. 5 - A 3.00-kg object is moving in a plane, with its x...Ch. 5 - A bag of cement weighing 325 N hangs in...Ch. 5 - A bag of cement whose weight is Fg hangs in...Ch. 5 - Two people pull as hard as they can on horizontal...Ch. 5 - Figure P5.36 shows loads hanging from the ceiling...Ch. 5 - An object of mass m = 1.00 kg is observed to have...Ch. 5 - A setup similar to the one shown in Figure P5.38...Ch. 5 - A simple accelerometer is constructed inside a car...Ch. 5 - An object of mass m1 = 5.00 kg placed on a...Ch. 5 - Figure P5.41 shows the speed of a persons body as...Ch. 5 - Two objects are connected by a light string that...Ch. 5 - Two blocks, each of mass m = 3.50 kg, are hung...Ch. 5 - Two blocks, each of mass m, are hung from the...Ch. 5 - In the system shown in Figure P5.23, a horizontal...Ch. 5 - An object of mass m1 hangs from a string that...Ch. 5 - A block is given an initial velocity of 5.00 m/s...Ch. 5 - A car is stuck in the mud. A tow truck pulls on...Ch. 5 - Two blocks of mass 3.50 kg and 8.00 kg arc...Ch. 5 - In the Atwood machine discussed in Example 5.9 and...Ch. 5 - In Example 5.8, we investigated the apparent...Ch. 5 - Consider a large truck carrying a heavy load, such...Ch. 5 - Review. A rifle bullet with a mass of 12.0 g...Ch. 5 - Review. A car is traveling at 50.0 mi/h on a...Ch. 5 - A 25.0-kg block is initially at rest oil a...Ch. 5 - Why is the following situation impassible? Your...Ch. 5 - To determine the coefficients of friction between...Ch. 5 - Before 1960m people believed that the maximum...Ch. 5 - To meet a U.S. Postal Service requirement,...Ch. 5 - A woman at an airport is towing her 20.0-kg...Ch. 5 - Review. A 3.00-kg block starts from rest at the...Ch. 5 - The person in Figure P5.30 weighs 170 lb. As seen...Ch. 5 - A 9.00-kg hanging object is connected by a light,...Ch. 5 - Three objects are connected on a table as shown in...Ch. 5 - Two blocks connected by a rope of negligible mass...Ch. 5 - A block of mass 3.00 kg is pushed up against a...Ch. 5 - Review. One side of the roof of a house slopes up...Ch. 5 - Review. A Chinook salmon can swim underwater at...Ch. 5 - Review. A magician pulls a tablecloth from under a...Ch. 5 - A 5.00-kg block is placed on top of a 10.0-kg...Ch. 5 - The system shown in Figure P5.49 has an...Ch. 5 - A black aluminum glider floats on a film of air...Ch. 5 - A young woman buys an inexpensive used car stock...Ch. 5 - Why is the following situation impossible? A book...Ch. 5 - Review. A hockey puck struck by a hockey stick is...Ch. 5 - A 1.00-kg glider on a horizontal air track is...Ch. 5 - A frictionless plane is 10.0 m long and inclined...Ch. 5 - A rope with mass mr is attached to a block with...Ch. 5 - Two blocks of masses m1 and m2, are placed on a...Ch. 5 - On a single, light, vertical cable that does not...Ch. 5 - An inventive child named Nick wants to reach an...Ch. 5 - In the situation described in Problem 41 and...Ch. 5 - In Example 5.7, we pushed on two blocks on a...Ch. 5 - Prob. 5.84APCh. 5 - An object of mass M is held in place by an applied...Ch. 5 - Prob. 5.86APCh. 5 - Objects with masses m, = 10.0 kg and nut = 5.00 kg...Ch. 5 - Consider the three connected objects shown in...Ch. 5 - A crate of weight Fg is pushed by a force P on a...Ch. 5 - A student is asked to measure the acceleration of...Ch. 5 - A flat cushion of mass m is released from rest at...Ch. 5 - In Figure P5.46, the pulleys and pulleys the cord...Ch. 5 - What horizontal force must be applied to a large...Ch. 5 - An 8.40-kg object slides down a fixed,...Ch. 5 - A car accelerates down a hill (Fig. P5.95), going...Ch. 5 - A time-dependent force, F = (8.00i - 4.00/j),...Ch. 5 - The board sandwiched between two other boards in...Ch. 5 - Initially, the system of objects shown in Figure...Ch. 5 - A block of mass 2.20 kg is accelerated across a...Ch. 5 - Why is the following situation impossible? A...Ch. 5 - Review. A block of mass m = 2.00 kg is released...Ch. 5 - In Figure P5.55, the incline has mass M and is...Ch. 5 - A block of mass m = 2.00 kg rests on the left edge...Ch. 5 - A mobile is formed by supporting four metal...
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
- On her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.20-kg basket of goodies beside her. A wolf came along, spotted the basket, and began to pull on the handle with a force of 6.40 N at an angle of 25° with respect to vertical. Red was not going to let go easily, so she pulled on the handle with a force of 13.5 N. If the net force on the basket is straight up, at what angle was Red Riding Hood pulling from the vertical? The whole question did not paste in on my last attempt.arrow_forwardA block M1 of mass 10.0 kg sits on top of a larger block M2 of mass 20.0 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.440. The kinetic friction coefficient between the lower block and the flat surface is 0.140. A horizontal force F= 97 N pushes against the upper block, causing it to slide. The friction force between the blocks then causes the lower block to slide also. What is the magnitude of the acceleration of the upper block? What is the magnitude of the acceleration of the lower block?arrow_forwardBlocks with masses of 1.2 kg, 2.4 kg, and 3.0 kg are lined up in a row on a frictionless table. All three are pushed forward by a 14 N force applied to the 1.2 kg block. How much force does the 2.4 kg block exert on (a) the 3.0 kg block and (b) the 1.2 kg block?arrow_forward
- On her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.20-kg basket of goodies beside her. A wolf came along, spotted the basket, and began to pull on the handle with a force of 6.40 N at an angle of 25° with respect to vertical. Red was not going to let go easily, so she pulled on the handle with a force of 13.5 N. If the net force on the basket is straight up, at what angle was Red Riding Hood pulling from the vertical? I was given the WRONG answer this morning! The force that Red applied was 13.5N NOT 12.2 N! Use 13.5 N! I use this service primarily to check my work. If the "experts" are using the wrong values, I question if they will use the right mathematical procedures if I really have a challenge!arrow_forwardA robot with fancy wheels is trained to move in two directions simultaneously. The force in the forward direction is 10 N and the force in the horizontal direction is 8 N. If the robot starts from rest, has a mass of 75 kg and travels for 100 seconds, what is the magnitude of the robot's final displacement?arrow_forwardOn her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.20 kg basket of goodies beside her. A wolf came along, spotted the basket, and began to pull on the handle with a force of 6.40 N at an angle of 25 degree with respect to vertical. Red was not going to let go easily, so she pulled on the handle with a force of 12.2 N. If the net force on the basket is straight up, at what angle was Red Riding Hood pulling from the vertical?arrow_forward
- A block of mass m is sitting on a block of mass M. The bottom block is sitting on a horizontal floor. The coefficient of static friction between the blocks is μs1, and the coefficient of static friction between the bottom block and the floor is μs2. What is the minimum pull force F on the bottom block so that the blocks begin to move? Given that the coefficient of kinetic friction between the bottom block and the floor is μk, what is the maximum pull force F so that there is no slipping between the blocks?arrow_forwardThree crates with various contents are pulled by a force Fpull = 3535 N across a horizontal, frictionless roller-conveyor system. The group of boxes accelerates at 1.648 m/s² to the right. Between each adjacent pair of boxes is a force meter that measures the magnitude of the tension in the connecting rope. Between the box of mass m₁ and the box of mass m₂, the force meter reads F12 = 1376 N. Between the box of mass m₂ and the box of mass m3, the force meter reads F23 = 2241 N. Assume that the ropes and force meters are massless. Mtotal = m₁ What is the total mass of the three boxes? m₁ = FRAGILE What is the mass of each box? m3 = F12 m₂ FRAGILE kg kg kg F 23 m₂ = m3 FRAGILE F pull kgarrow_forwardTwo horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P is directed to the left but the direction of Q is unknown; it could either be directed to the right or to the left. The object moves along the x-axis. Assume there is no friction between the object and the table. Here P = -6.1 N and the mass of the block is 3.8 kg. P (a) What is the magnitudeand direction of Q (in N) when the block moves with constant velocity? (Indicate the direction with the sign of your answer.) 6.1 N (b) What is the magnitude and direction of Q (in N) when the acceleration of the block is +7.5 m/s2. (Indicate the direction with the sign of your answer.) X 22.4 The acceleration given here is due to the net force acting on the object. N (c) Find the magnitude and direction of Q (in N) when the acceleration of the block is -7.5 m/s2. (Indicate the direction with the sign of your answer.) X -34.6 What is the direction of motion of the object when the acceleration is…arrow_forward
- Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He decides to move them at the same time by pushing on box A with a horizontal pushing force F, = 9.1 N. Here A has a mass m, = 10.6 kg and B has a mass m, = 7.0 kg. The contact force between the two boxes is F.. The coefficient kinetic friction between the boxes and the floor is C* 0.04. (Assume F, acts in the +x direction.) mA (a) What is the magnitude (in m/s2) of the acceleration of the two boxes? m/s2 (b) What is the force exerted on ma by m,? In other words what is the magnitude (in N) of the contact force F.? (c) If Alex were to push from the other side on the 7.0-kg box, what would the new magnitude (in N) of F, be?arrow_forwardJane, who has a mass of 81.0 kg, is riding at 15.0 m/s in his new car when she must suddenly slam on the brakes for the traffic light. She feels a pull on the seatbelt, and brings her body to a stop in 0.5 s. What average force does the seat belt exert on her?arrow_forwardThree blocks are sitting in a row on a frictionless tabale; block 1 has m1 = 10kg, block 2 has m2=20 kg; block 3 has m3 = 30kg; block 1 is on the left , block 2 is in the middle, block 3 is on the right ; a 50-pound push force is applied to block 1 to push all three blocks to the right; this is a contact forces problem; draw the blocks and the force vectors, calculate each force on each block, the net force on each block, and the acceleration of the systemarrow_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
Conservative and Non Conservative Forces; Author: AK LECTURES;https://www.youtube.com/watch?v=vFVCluvSrFc;License: Standard YouTube License, CC-BY