College Physics 1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: Paul Peter Urone, Roger Hinrichs
1 Introduction: The Nature Of Science And Physics 2 Kinematics 3 Two-dimensional Kinematics 4 Dynamics: Force And Newton's Laws Of Motion 5 Further Applications Of Newton's Laws: Friction, Drag, And Elasticity 6 Uniform Circular Motion And Gravitation 7 Work, Energy, And Energy Resources 8 Linear Momentum And Collisions 9 Statics And Torque 10 Rotational Motion And Angular Momentum 11 Fluid Statics 12 Fluid Dynamics And Its Biological And Medical Applications 13 Temperature, Kinetic Theory, And The Gas Laws 14 Heat And Heat Transfer Methods 15 Thermodynamics 16 Oscillatory Motion And Waves 17 Physics Of Hearing 18 Electric Charge And Electric Field 19 Electric Potential And Electric Field 20 Electric Current, Resistance, And Ohm's Law 21 Circuits And Dc Instruments 22 Magnetism 23 Electromagnetic Induction, Ac Circuits, And Electrical Technologies 24 Electromagnetic Waves 25 Geometric Optics 26 Vision And Optical Instruments 27 Wave Optics 28 Special Relativity 29 Introduction To Quantum Physics 30 Atomic Physics 31 Radioactivity And Nuclear Physics 32 Medical Applications Of Nuclear Physics 33 Particle Physics 34 Frontiers Of Physics Chapter8: Linear Momentum And Collisions
Chapter Questions Section: Chapter Questions
Problem 1CQ: An object that has a small mass and an object that has a large mass have the same momentum. Which... Problem 2CQ: An object that has a small mass and an object that has a large mass have the same kinetic energy.... Problem 3CQ: Professional Application Football coaches advise players to block, hit, and tackle with their feet... Problem 4CQ: How can a small force impart the same momentum to an object as a large force? Problem 5CQ: Professional Application Explain in terms of impulse how padding reduces forces in a collision.... Problem 6CQ: While jumping on a trampoline, sometimes you land on your back and other times on your feet. In... Problem 7CQ: Professional Application Tennis racquets have "sweet spots." If the ball hits a sweet spot then the... Problem 8CQ: Professional Application If you dive into water, you reach greater depths if you do a belly flop.... Problem 9CQ: Under what circumstances is momentum conserved? Problem 10CQ: Can momentum be conserved for a system if there are external forces acting on the system? If so,... Problem 11CQ: Momentum for a system can be conserved in one direction while not being conserved in another. What... Problem 12CQ: Professional Application Explain in terms of momentum and Newton's laws how a car's air resistance... Problem 13CQ: Can objects in a system have momentum while the momentum of the system is zero? Explain your answer. Problem 14CQ: Must the total energy of a system be conserved whenever its momentum is conserved? Explain why or... Problem 15CQ: What is an elastic collision? Problem 16CQ: What is an inelastic collision? What is a perfectly inelastic collision? Problem 17CQ: Mixed-pair ice skaters performing in a show are standing motionless at arms length just before... Problem 18CQ: A Small pickup truck that has a caliper shell slowly coasts toward a red light with negligible... Problem 19CQ: Figure 8.16 shows a cube at rest and a small object heading toward it. (a) Describe the directions... Problem 20CQ: Professional Application Suppose a fireworks shell explodes, breaking into three large pieces for... Problem 21CQ: Professional Application During a visit to the International Space Station, an astronaut was... Problem 22CQ: Professional Application It is possible for the velocity of a rocket to be greater than the exhaust... Problem 1PE: (a) Calculate the momentum of a 2000-kg elephant charging a hunter at a speed of 7.50 m/s. (b)... Problem 2PE: (a) What is the mass of a large ship that has a momentum of 1.60109kgm/s, when the ship is moving at... Problem 3PE: (a) At what speed would a 2.00104 -kg airplane have to fly to have a momentum of 1.60109kgm/s (the... Problem 4PE: (a) What is the momentum of a garbage truck that is 1.20104 kg and is moving at 10.0 m/s ? (b) At... Problem 5PE: A runaway train car that has a mass of 15,000 kg travels at a speed of 5.4 m/s down a track. Compute... Problem 6PE: The mass of Earth is 5.9721024 kg and its orbital radius is an average of 1.4961011 m. Calculate its... Problem 7PE: A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun... Problem 8PE: Professional Application A car moving at 10 m/s crashes into a tree and stops in 0.26 s. Calculate... Problem 9PE: A person slaps her leg with her hand, bringing her hand to rest in 2.50 milliseconds from an initial... Problem 10PE: Professional Application A professional boxer hits his opponent with a 1000-N horizontal blow that... Problem 11PE: Professional Application Suppose a child drives a bumper car head on into the side rail, which... Problem 12PE: Professional Application One hazard of space travel is debris left by previous missions. There are... Problem 13PE: Professional Application A 75.0-kg person is riding in a car moving at 20.0 m/s when the car runs... Problem 14PE: Professional Application Military rifles have a mechanism for reducing the recoil forces of the gun... Problem 15PE: A cruise ship with a mass of 1.00107 kg strikes a pier at a speed of 0.750 m/s. It comes to rest... Problem 16PE: Calculate the final speed of a 110-kg rugby player who is initially running at 8.00 m/s but collides... Problem 17PE: Water from a fire hose is directed horizontally against a wall at a rate of 50.0 kg/s and a speed of... Problem 18PE: A 0.450-kg hammer is moving horizontally at 7.00 m/s when it strikes a nail and comes to rest after... Problem 19PE: Starting with the definitions of momentum and kinetic energy, derive an equation for the kinetic... Problem 20PE: A ball with an initial velocity of 10 m/s moves at an angle 60° above the +x -direction. The ball... Problem 21PE: When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point... Problem 22PE: A punter drops a ball from rest vertically 1 meter down onto his foot. The ball leaves the foot with... Problem 23PE: Professional Application Train cars are coupled together by being bumped into one another. Suppose... Problem 24PE: Suppose a clay model of a koala bear has a mass of 0.200 kg and slides on ice at a speed of 0.750... Problem 25PE: Professional Application Consider the following question: A car moving at 10 m/s crashes into a tree... Problem 26PE: What is the velocity of a 900-kg car initially moving at 30.0 m/s, just after it hits a 150-kg deer... Problem 27PE: A 1.80-kg falcon catches a 0.650-kg dove from behind in midair. What is their velocity after impact... Problem 28PE: Two identical objects (such as billiard balls) have a one-dimensional collision in which one is... Problem 29PE: Professional Application Two manned satellites approach one another at a relative speed of 0.250... Problem 30PE: A 70.0-kg ice hockey goalie, originally at rest, catches a 0.150-kg hockey puck slapped at him at a... Problem 31PE: A 0.240-kg billiard ball that is moving at 3.00 m/s strikes the bumper of a pool table and bounces... Problem 32PE: During an ice show, a 60.0-kg skater leaps into the air and is caught by an initially stationary... Problem 33PE: Professional Application Using mass and speed data from Example 8.1 and assuming that the football... Problem 34PE: A battleship that is 6.00*10' kg and is originally at rest fires a 1100-kg artillery shell... Problem 35PE: Professional Application Two manned satellites approaching one another, at a relative speed of 0.250... Problem 36PE: Professional Application A 30,000-kg freight car is coasting at 0.850 m/s with negligible friction... Problem 37PE: Professional Application Space probes may be separated from their launchers by exploding bolts.... Problem 38PE: A 0.0250-kg bullet is accelerated from rest to a speed of 550 m/s in a 3.00-kg rifle. The pain of... Problem 39PE: Professional Application One of the waste products of a nuclear reactor is plutonium-239 (239Pu).... Problem 40PE: Professional Application The Moon's craters are remnants of meteorite collisions. Suppose a fairly... Problem 41PE: Professional Application Two football players collide head-on in midair while trying to catch a... Problem 42PE: What is the speed of a garbage truck that is 1.20104 kg and is initially moving at 25.0 m/s just... Problem 43PE: During a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him.... Problem 44PE: (a) During an ice skating performance, an initially motionless 80.0-kg clown throws a fake barbell... Problem 45PE: Two identical pucks collide on an air hockey table. One puck was originally at rest. (a) If the... Problem 46PE: Confirm that the results of the example Example 8.7 do conserve momentum in both the x- and y... Problem 47PE: A 3000-kg cannon is mounted so that it can recoil only in the horizontal direction. (a) Calculate... Problem 48PE: Professional Application A 5.50-kg bowling ball moving at 9.00 m/s collides with a 0.850-kg bowling... Problem 49PE: Professional Application Ernest Rutherford (the first New Zealander to be awarded the Nobel Prize in... Problem 50PE: Professional Application Two cars collide at an icy intersection and stick together afterward. The... Problem 51PE: Starting with equations m1v1=m1v1cos1+m2v2cos2 and 0=m1v1cos1+m2v2sin2 for conservation of momentum... Problem 52PE: Integrated Concepts A 90.0-kg ice hockey player hits a 0.150-kg puck, giving the puck a velocity of... Problem 53PE: Professional Application Antiballistic missiles (ABMs) are designed to have very large accelerations... Problem 54PE: Professional Application What is the acceleration of a 5000-kg rocket taking off from the Moon,... Problem 55PE: Professional Application Calculate the increase in velocity of a 4000-kg space probe that expels... Problem 56PE: Professional Application Ion-propulsion rockets have been proposed for use in space. They employ... Problem 57PE: Derive the equation for the vertical acceleration of a rocket. Problem 58PE: Professional Application (a) Calculate the maximum rate at which a rocket can expel gases if its... Problem 59PE: Given the following data for a fire extinguisher-toy wagon rocket experiment, calculate the average... Problem 60PE: How much of a single-stage rocket that is 100,000 kg can be anything but fuel if the rocket is to... Problem 61PE: Professional Application (a) A 5.00-kg squid initially at rest ejects 0.250-kg of fluid with a... Problem 62PE: Unreasonable Results Squids have been reported to jump from the ocean and travel 30.0 m (measured... Problem 63PE: Construct Your Own Problem Consider an astronaut in deep space cut free from her space ship and... Problem 64PE: Construct Your Own Problem Consider an artillery projectile striking armor plating. Construct a... Problem 4PE: (a) What is the momentum of a garbage truck that is 1.20104 kg and is moving at 10.0 m/s ? (b) At...
Related questions
The ropes shown are each wrapped around a cylinder, and the two cylinders are fastened together. The smaller cylinder has a diameter of 10 cm and a mass of 5.0 kg; the larger cylinder has a diameter of 20 cm and a mass of 20 kg. What is the angular acceleration of the cylinders? Assume that the cylinders turn on a frictionless axle.
Transcribed Image Text: 2.5 kg
4.0 kg
FIGURE P7.71
Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .
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