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
Question
Chapter 9, Problem 9.2OQ
(a)
To determine
Whether the mechanical energy of the system is conserved or not.
(b)
To determine
Whether the momentum of the system is conserved or not.
(c)
To determine
Whether the mechanical energy is conserved or not.
(d)
To determine
Whether the momentum is conserved or not if the two cars are considered as system as the boxcar is slowing down in the coupling process.
(e)
To determine
Whether the mechanical energy of given system is conserved or not.
(f)
To determine
Whether the momentum of given system is conserved or not.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Two blocks A (m = 3.00 Kg) and B (m = 1.00 Kg) are tied by a string via a pulley as shown in the figure. Object B is initially 1.00 m above the floor surface. Assuming the system was released from rest and the table surface is smooth, what would be the kinetic energy of block B just before impact?
In the figure, a 4.6 kg box of running shoes slides on a horizontal frictionless table and collides with a 3.0 kg box of ballet slippers initially at rest on the edge of the table, at height h = 0.78 m. The speed of the 4.6 kg box is 2.9 m/s just before the collision. If the two boxes stick together because of packing tape on their sides, what is their kinetic energy just before they strike the floor?
A railroad car of mass m and speed v collides with and sticks to an identical railroad car that is initially at rest. After thecollision, is the kinetic energy of the system (a) 1>2, (b) 1>3, or (c) 1>4 of its initial kinetic energy?
Chapter 9 Solutions
Physics for Scientists and Engineers, Technology Update (No access codes included)
Ch. 9 - Two objects have equal kinetic energies. How do...Ch. 9 - Your physical education teacher throws a baseball...Ch. 9 - Two objects are at rest on a frictionless surface....Ch. 9 - Rank an automobile dashboard, seat belt, and air...Ch. 9 - In a perfectly inelastic one-dimensional collision...Ch. 9 - A table-tennis ball is thrown at a stationary...Ch. 9 - A baseball bat of uniform density is cut at the...Ch. 9 - A cruise ship is moving at constant speed through...Ch. 9 - You are standing on a saucer-shaped sled at rest...Ch. 9 - Prob. 9.2OQ
Ch. 9 - A massive tractor is rolling down a country road....Ch. 9 - A 2-kg object moving to the right with a speed of...Ch. 9 - A 5-kg cart moving to the right with a speed of 6...Ch. 9 - A 57.0-g tennis ball is traveling straight at a...Ch. 9 - The momentum of an object is increased by a factor...Ch. 9 - The kinetic energy of an object is increased by a...Ch. 9 - If two particles have equal momenta, are their...Ch. 9 - If two particles have equal kinetic energies, are...Ch. 9 - A 10.0-g bullet is fired into a 200-g block of...Ch. 9 - Two particles of different mass start from rest....Ch. 9 - Two particles of different mass start from rest....Ch. 9 - A basketball is tossed up into the air, falls...Ch. 9 - A 3-kg object moving to the right on a...Ch. 9 - A ball is suspended by a string that is tied to a...Ch. 9 - A car of mass m traveling at speed v crashes into...Ch. 9 - A head-on, elastic collision occurs between two...Ch. 9 - An airbag in an automobile inflates when a...Ch. 9 - In golf, novice players are often advised to be...Ch. 9 - An open box slides across a frictionless, icy...Ch. 9 - While in motion, a pitched baseball carries...Ch. 9 - Prob. 9.5CQCh. 9 - A sharpshooter fires a rifle while standing with...Ch. 9 - Two students hold a large bed sheet vertically...Ch. 9 - A juggler juggles three balls in a continuous...Ch. 9 - (a) Does the center of mass of a rocket in free...Ch. 9 - On the subject of the following positions, state...Ch. 9 - Prob. 9.11CQCh. 9 - Prob. 9.12CQCh. 9 - A bomb, initially at rest, explodes into several...Ch. 9 - A particle of mass m moves with momentum of...Ch. 9 - An object has a kinetic energy of 275 J and a...Ch. 9 - At one instant, a 17.5-kg sled is moving over a...Ch. 9 - A 3.00-kg particle has a velocity of...Ch. 9 - A baseball approaches home plate at a speed of...Ch. 9 - A 45.0-kg girl is standing on a 150-kg plank. Both...Ch. 9 - A girl of mass mg is standing on a plank of mass...Ch. 9 - A 65.0-kg boy and his 40.0-kg sister, both wearing...Ch. 9 - In research in cardiology and exercise physiology,...Ch. 9 - When you jump straight up as high as you can, what...Ch. 9 - Two blocks of masses m and 3m are placed on a...Ch. 9 - A man claims that he can hold onto a 12.0-kg child...Ch. 9 - An estimated force-time curve for a baseball...Ch. 9 - Review. After a 0.300-kg rubber ball is dropped...Ch. 9 - A glider of mass m is free to slide along a...Ch. 9 - In a slow-pitch softball game, a 0.200-kg softball...Ch. 9 - The front 1.20 m of a 1 400-kg car Ls designed as...Ch. 9 - A tennis player receives a shot with the ball...Ch. 9 - The magnitude of the net force exerted in the x...Ch. 9 - Review. A force platform is a tool used to analyze...Ch. 9 - Water falls without splashing at a rate of 0.250...Ch. 9 - A 1 200-kg car traveling initially at vCi = 25.0...Ch. 9 - A 10.0-g bullet is fired into a stationary block...Ch. 9 - A car of mass m moving at a speed v1 collides and...Ch. 9 - A railroad car of mass 2.50 104 kg is moving with...Ch. 9 - Four railroad cars, each of mass 2.50 104 kg, are...Ch. 9 - A neutron in a nuclear reactor makes an elastic,...Ch. 9 - A 7.00-g bullet, when fired from a gun into a...Ch. 9 - A tennis ball of mass 57.0 g is held just above a...Ch. 9 - As shown in Figure P9.30, a bullet of mass m and...Ch. 9 - A 12.0-g wad of sticky clay is hurled horizontally...Ch. 9 - A wad of sticky clay of mass m is hurled...Ch. 9 - Prob. 9.33PCh. 9 - (a) Three carts of masses m1 = 4.00 kg, m2 = 10.0...Ch. 9 - A 0.300-kg puck, initially at rest on a...Ch. 9 - Prob. 9.36PCh. 9 - An object of mass 3.00 kg, moving with an initial...Ch. 9 - Two shuffleboard disks of equal mass, one orange...Ch. 9 - Two shuffleboard disks of equal mass, one orange...Ch. 9 - A proton, moving with a velocity of vii, collides...Ch. 9 - A billiard ball moving at 5.00 m/s strikes a...Ch. 9 - A 90.0-kg fullback running east with a speed of...Ch. 9 - An unstable atomic nucleus of mass 17.0 10-27 kg...Ch. 9 - The mass of the blue puck in Figure P9.44 is 20.0%...Ch. 9 - Prob. 9.45PCh. 9 - The mass of the Earth is 5.97 1024 kg, and the...Ch. 9 - Explorers in the jungle find an ancient monument...Ch. 9 - A uniform piece of sheet metal is shaped as shown...Ch. 9 - A rod of length 30.0 cm has linear density (mass...Ch. 9 - A water molecule consists of an oxygen atom with...Ch. 9 - A 2.00-kg particle has a velocity (2.00. 3.00)...Ch. 9 - Consider a system of two particles in the xy...Ch. 9 - Romeo (77.0 kg) entertains Juliet (55.0 kg) by...Ch. 9 - The vector position of a 3.50-g particle moving in...Ch. 9 - A ball of mass 0.200 kg with a velocity of 1.50...Ch. 9 - Prob. 9.56PCh. 9 - A particle is suspended from a post on top of a...Ch. 9 - A 60.0-kg person bends his knees and then jumps...Ch. 9 - Figure P9.59a shows an overhead view of the...Ch. 9 - A model rocket engine has an average thrust of...Ch. 9 - A garden hose is held as shown in Figure P9.32....Ch. 9 - Review. The first stage of a Saturn V space...Ch. 9 - A rocket for use in deep space is to be capable of...Ch. 9 - A rocket has total mass Mi = 360 kg, including...Ch. 9 - Prob. 9.65APCh. 9 - An amateur skater of mass M is trapped in the...Ch. 9 - A 3.00-kg steel ball strikes a wall with a speed...Ch. 9 - (a) Figure P9.36 shows three points in the...Ch. 9 - Review. A 60.0-kg person running at an initial...Ch. 9 - A cannon is rigidly attached to a carriage, which...Ch. 9 - A 1.25-kg wooden block rests on a table over a...Ch. 9 - A wooden block of mass M rests on a table over a...Ch. 9 - Two particles with masses m and 3m are moving...Ch. 9 - Pursued by ferocious wolves, you are in a sleigh...Ch. 9 - Two gliders are set in motion on a horizontal air...Ch. 9 - Why is the following situation impossible? An...Ch. 9 - Two blocks of masses m1 = 2.00 kg and m2 = 4.00 kg...Ch. 9 - Prob. 9.78APCh. 9 - A 0.400-kg blue bead slides on a frictionless,...Ch. 9 - A small block of mass mt = 0.500 kg is released...Ch. 9 - Review. A bullet of mass m = 8.00 g is fired into...Ch. 9 - Review. A bullet of mass m is fired into a block...Ch. 9 - A 0.500-kg sphere moving with a velocity expressed...Ch. 9 - A 75.0-kg firefighter slides down a pole while a...Ch. 9 - George of the Jungle, will mass m, swings on a...Ch. 9 - Review. A student performs a ballistic pendulum...Ch. 9 - Review. A light spring of force constant 3.85 N/m...Ch. 9 - Prob. 9.88APCh. 9 - A 5.00-g bullet moving with an initial speed of i...Ch. 9 - Review. There are (one can say) three coequal...Ch. 9 - A 2.00-g particle moving at 8.00 m/s makes a...Ch. 9 - Prob. 9.92CPCh. 9 - Two particles with masses m and 3m are moving...Ch. 9 - Sand from a stationary hopper falls onto a moving...Ch. 9 - On a horizontal air track, a glider of mass m...Ch. 9 - Review. A chain of length L and total mass M is...
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 coefficient of friction between the block of mass m1 = 3.00 kg and ilie surface in Figure P8.22 is k = 0.400. The system starts from rest. What is the speed of the ball of mass m2 = 5.00 kg when it has fallen a distance h = 1.50 m?arrow_forwardTwo blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is attached to the more massive block, and the blocks are pushed together with the spring between them (Fig. P8.7). A cord initially holding the blocks together is burned; after that happens, the block of mass 3m moves to the right with a speed of 2.00 m/s. (a) What is the velocity of the block of mass m? (b) Find the systems original elastic potential energy, taking m = 0.350 kg. (c) Is the original energy in the spring or in the cord? (d) Explain your answer to part (c). (e) Is the momentum of the system conserved in the bursting-apart process? Explain how that is possible considering (f) there are large forces acting and (g) there is no motion beforehand and plenty of motion afterward? Figure P8.7arrow_forwardCheck Your Understanding There is a second solution to the system of equations solved in this example (because the energy equation is quadratic): v1.f=-2.5m/s , v2.f=0 . This solution is unacceptable on physical grounds; what’s with it?arrow_forward
- An inclined plane of angle = 20.0 has a spring of force constant k = 500 N/m fastened securely at the bottom so that the spring is parallel to the surface as shown in Figure P6.61. A block of mass m = 2.50 kg is placed on the plane at a distance d = 0.300 m from the spring. From this position, the block is projected downward toward the spring with speed v = 0.750 m/s. By what distance is the spring compressed when the block momentarily comes to rest?arrow_forwardEzra (m = 25.0 kg) has a tire swing and wants to swing as high as possible. He thinks that his best option is to run as fast as he can and jump onto the tire at full speed. The tire has a mass of 10.0 kg and hangs 3.75 m straight down from a tree branch. Ezra stands back 10.0 m and accelerates to a speed of 3.50 m /s before jumping onto the tire swing. a. How fast are Ezra and the tire moving immediately after he jumps onto the swing? b. How high does the tire travel above its initial height?arrow_forwardTwo gliders are set in motion on a horizontal air track. A spring of force constant k is attached to the back end of the second glider. As shown in Figure P8.48, the first glider, of mass m1, moves to the right with speed v1, and the second glider, of mass m2, moves more slowly to the right with speed v2. When m1 collides with the spring attached to m2, the spring compresses by a distance xmax, and the gliders then move apart again. In terms of v1, v2, m1, m2, and k, find (a) the speed rat maximum compression, (b) the maximum compression xmax, and (c) the velocity of each glider after m1 has lost contact with the spring.arrow_forward
- A giant swing at an amusement park consists of a 365-kg uniform arm 10.0 m long, with two seats of negligible mass connected at the lower end of the arm (Fig. P8.53). (a) How far from the upper end is the center of mass of the arm? (b) The gravitational potential energy of the arm is the same as if all its mass were concentrated at the center of mass. If the arm is raised through a 45.0 angle, find the gravitational potential energy, where the zero level is taken to be 10.0 m below the axis, (c) The arm drops from rest from the position described in part (b). Find the gravitational potential energy of the system when it reaches the vertical orientation. (d) Find the speed of the seats at the bottom of the swing.arrow_forwardA block is placed on top of a vertical spring, and the spring compresses. Figure P8.24 depicts a moment in time when the spring is compressed by an amount h. a. To calculate the change in the gravitational and elastic potential energies, what must be included in the system? b. Find an expression for the change in the systems potential energy in terms of the parameters shown in Figure P8.24. c. If m = 0.865 kg and k = 125 N/m, find the change in the systems potential energy when the blocks displacement is h = 0.0650 m, relative to its initial position. FIGURE P8.24arrow_forwardA 6 000-kg freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in Figure P6.27 (page 188). Both springs are described by Hookes law and have spring constants k1 = 1 600 N/m and k2, = 3 400 N/m. After the first spring compresses a distance of 30.0 cm, the second spring acts with the first to increase the force as additional compression occurs as shown in the graph. The car comes to rest 50.0 cm after first contacting the two-spring system. Find the cars initial speed.arrow_forward
- Two rigid bodies, A and B, both 1 kg in mass, are connected by a linear spring with a spring constant of 0.2 N/m. Initially, the spring is unstretched and the bodies are at rest. If multiple forces and moments are applied to the two bodies that result in the speed of body A increasing to 10 m/s, the speed of body B increasing to 4 m/s, and the stretch of the spring increasing by 10 m, then -20 Nm of work was done by the spring on the body A, B system. Two rigid bodies, A and B, both 1 kg in mass, are connected by a linear spring with a spring constant of 0.2 N/m. Initially, the spring is unstretched and the bodies are at rest. If multiple forces and moments are applied to the two bodies that result in the speed of body A increasing to 10 m/s, the speed of body B increasing to 4 m/s, and the stretch of the spring increasing by 10 m, then -20 Nm of work was done by the spring on the body A, B system. True Falsearrow_forwardIn a railroad accident, a boxcar weighing 200 kN and traveling at 2.00 m/s on horizontal track slams into a stationary caboose weighing 440 kN. The collision connects the caboose to the boxcar. How much energy is transferred from kinetic energy to other forms of energy in the collision?arrow_forwardA 5.00 kg block moving with a velocity of 2.00 m/s on a flat horizontal surface enters a region where the coefficient of friction has increased. The kinetic energy of the blockarrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics 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 Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
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