1 Introduction 2 Motion Along A Line 3 Motion In A Plane 4 Force And Newton's Laws Of Motion 5 Circular Motion 6 Conservation Of Energy 7 Linear Momentum 8 Torque And Angular Momentum 9 Fluids 10 Elasticity And Oscillations 11 Waves 12 Sound 13 Temperature And Ideal Gas 14 Heat 15 Thermodynamics 16 Electric Forces And Fields 17 Electric Potential 18 Electric Current And Circuits 19 Magnetic Forces And Fields 20 Electromagnetic Induction 21 Alternating Current 22 Electromagnetic Waves 23 Reflection And Refraction Of Light 24 Optical Instruments 25 Interference And Diffraction 26 Relativity 27 Early Quantum Physics And The Photon 28 Quantum Physics 29 Nuclear Physics 30 Particle Physics expand_more
4.1 Interaction And Forces 4.2 Inertia And Equilibrium: Newton's First Law Of Motion 4.3 Net Force, Mass, And Acceleration: Newton's Second Law Of Motion 4.4 Interaction Pairs: Newton's Third Law Of Motion 4.5 Gravitational Forces 4.6 Contact Forces 4.7 Tension 4.8 Applying Newton's Laws 4.9 Reference Frames 4.10 Apparent Weight 4.11 Air Resistance 4.12 Fundamental Forces Chapter Questions expand_more
Problem 1CQ Problem 2CQ Problem 4CQ Problem 5CQ Problem 6CQ Problem 7CQ Problem 8CQ Problem 9CQ Problem 10CQ Problem 11CQ Problem 12CQ Problem 13CQ Problem 14CQ Problem 15CQ: 15. A heavy ball hangs from a string attached to a sturdy wooden frame. A second string is attached... Problem 16CQ: 16. An SUV collides with a Mini Cooper convertible. Is the force exerted on the Mini by the SUV... Problem 17CQ Problem 18CQ Problem 19CQ Problem 20CQ Problem 21CQ Problem 22CQ Problem 23CQ Problem 24CQ: 24. Pulleys and inclined planes are examples of simple machines. Explain what these machines do in... Problem 25CQ Problem 26CQ Problem 27CQ Problem 28CQ Problem 29CQ Problem 30CQ Problem 31CQ Problem 1MCQ Problem 2MCQ Problem 3MCQ Problem 4MCQ Problem 5MCQ Problem 6MCQ Problem 7MCQ Problem 8MCQ Problem 9MCQ Problem 10MCQ Problem 11MCQ Problem 12MCQ Problem 13MCQ Problem 14MCQ Problem 15MCQ Problem 16MCQ Problem 17MCQ Problem 18MCQ Problem 19MCQ Problem 20MCQ Problem 21MCQ Problem 22MCQ Problem 23MCQ Problem 24MCQ Problem 25MCQ Problem 26MCQ Problem 1P Problem 2P Problem 3P Problem 4P Problem 5P Problem 6P Problem 7P Problem 8P Problem 9P Problem 10P Problem 11P Problem 12P Problem 13P Problem 14P Problem 15P Problem 16P: 16. A truck driving on a level highway is acted on by the following forces: a downward gravitational... Problem 17P: 17. A tennis ball (mass 57.0 g) moves toward the player’s racquet at 47.5 m/s. It is in contact with... Problem 18P: 18. A red-tailed hawk that weighs 8 N is gliding due north at constant speed. What is the total... Problem 19P: 19. An 80 N crate of apples sits at rest on the horizontal bed of a parked pickup truck. What is the... Problem 20P: 20. Forces of magnitudes 2000 N and 3000 N act on five objects. The directions of the forces are... Problem 29P: 21. A person stands on the ball of one foot. The force due to the ground pushing up on the ball of... Problem 21P Problem 22P: 22. A sailboat, tied to a mooring with a line, weighs 820 N. The mooring line pulls horizontally... Problem 23P: 23. A hummingbird is hovering motionless beside a flower. The blur of its wings shows that they are... Problem 24P: 24. You are pulling a suitcase through the airport at a constant speed. The handle of the suitcase... Problem 30P Problem 26P: 26. A man is lazily floating on an air mattress in a swimming pool. If the weight of the man and air... Problem 25P: 27. What is the acceleration of an automobile of mass 1.40 × 103 kg when it is subjected to a net... Problem 27P: 29. A large wooden crate is pushed along a horizontal, frictionless surface by a force of 100 N. The... Problem 28P: 28. A bag of potatoes with weight 39.2 N is suspended from a string that exerts a force of 46.8 N.... Problem 32P: 30. A hanging plant is suspended by a cord from a hook in the ceiling. Draw an FBD for each of... Problem 31P: 31. A bike is hanging from a hook in a garage. Consider the following forces: (1) the force of the... Problem 39P: 32. A woman who weighs 600 N sits on a chair with her feet on the floor and her arms resting on the... Problem 34P: 33. A fisherman is holding a fishing rod with a large fish hanging from the line. Identify the... Problem 35P Problem 36P: Problems 35–37. A skydiver, who weighs 650 N, is falling at a constant speed with his parachute... Problem 38P: 36. (a) Identify the forces acting on the parachute. Describe each force as: (type of force) exerted... Problem 37P: 37. Consider the skydiver and parachute to be a single system. Identify the external forces acting... Problem 33P: 38. Margie, who weighs 543 N, is standing on a bathroom scale that weighs 45 N. (a) With what... Problem 40P: 39. (a) Calculate your weight in newtons. (b) What is the weight in newtons of 250 g of cheese? (c)... Problem 42P: 40. A young South African girl has a mass of 40.0 kg. (a) What is her weight in newtons? (b) If she... Problem 41P: 41. A man weighs 0.80 kN on Earth. What is his mass in kilograms?
Problem 44P: 42. The peak force on a runner’s foot during a race is found to be vertical and three times his... Problem 43P: 43. In a binary star system, two stars orbit their common center of mass. In one such system, star A... Problem 46P: 44. An astronaut stands at a position on the Moon such that Earth is directly overhead and releases... Problem 45P: 45. Find the ratio of the Earth’s gravitational force on a satellite when it is on the ground to the... Problem 48P: 46. How far above the surface of the Earth does an object have to be in order for it to have the... Problem 47P: 47. Find and compare the weight of a 65 kg man on Earth with the weight of the same man on (a) Mars,... Problem 50P: 48. Find the altitudes above the Earth’s surface where Earth’s gravitational field strength would be... Problem 49P: 49. During a balloon ascension, wearing an oxygen mask, you measure the weight of a calibrated 5.00... Problem 52P: 50. At what altitude above the Earth’s surface would your weight be half of what it is at the... Problem 53P: 51. (a) What is the magnitude of the gravitational force that the Earth exerts on the Moon? (b) What... Problem 54P: 52. What is the approximate magnitude of the gravitational force exerted by the Sun on the Voyager... Problem 51P: 53. In free fall, we assume the acceleration to be constant. Not only is air resistance ignored, but... Problem 55P: 54. A solar sailplane is going from Earth to Mars. Its sail is oriented to give a solar radiation... Problem 57P: Problems 55–57. Assume the elevator is supported by a single cable. Forces exerted by the guide... Problem 60P: 56. While an elevator of mass 2530 kg moves upward, the force exerted by the cable is 27.6 kN. (a)... Problem 59P: 57. While an elevator of mass 832 kg moves downward, the upward force due to the supporting cable is... Problem 56P: 58. The vertical component of the acceleration of a sailplane is zero when the air pushes up against... Problem 58P Problem 61P: 59. A man lifts a 2.0 kg stone vertically with his hand at a constant upward velocity of 1.5 m/s.... Problem 62P: 60. A man lifts a 2.0 kg stone vertically with his hand at a constant upward acceleration of 1.5... Problem 63P Problem 64P: 62. A binary star consists of two stars of masses M1 and 4.0M1 a distance d apart. Is there any... Problem 65P Problem 67P: 65. A crate of artichokes is on a ramp that is inclined 10.0° above the horizontal. Give the... Problem 66P Problem 68P Problem 69P: 67. An 85 kg skier is sliding down a ski slope at a constant velocity. The slope makes an angle of... Problem 70P: 68. A book that weighs 10 N is at rest in six different situations. Blue arrows indicate forces... Problem 71P: 69. Strategy While the crate is remaining at rest, the force of static friction must be equal in... Problem 72P: Problems 69–72. A crate of potatoes of mass 18.0 kg is on a ramp with angle of incline 30° to the... Problem 73P: Problems 69–72. A crate of potatoes of mass 18.0 kg is on a ramp with angle of incline 30° to the... Problem 74P: Problems 69–72. A crate of potatoes of mass 18.0 kg is on a ramp with angle of incline 30° to the... Problem 75P: 73. (a) In Example 4.10, if the movers stop pushing on the safe, can static friction hold the safe... Problem 76P: 74. A 3.0 kg block is at rest on a horizontal floor. If you push horizontally on the 3.0 kg block... Problem 77P: 75. A horse is trotting along pulling a sleigh through the snow. To move the sleigh, of mass m,... Problem 78P: 76. Before hanging new William Morris wallpaper in her bedroom, Brenda sanded the walls lightly to... Problem 79P: 78. A box sits on a horizontal wooden ramp. The coefficient of static friction between the box and... Problem 80P: 79. In a playground, two slides have different angles of incline θ1 and θ2 (θ2 > θ1). A child slides... Problem 81P: 81. A towline is attached between a car and a glider. As the car speeds due east along the runway,... Problem 82P: 82. In Example 4.14, find the tension in the coupling between cars 2 and 3. (connect tutorial:... Problem 83P: 83. A 200.0 N sign is suspended from a horizontal strut of negligible weight. The force exerted on... Problem 84P: 84. Strategy Use Newton’s first law of motion. The lower cord supports only the lower box, whereas... Problem 85P: 85. A pulley is attached to the ceiling. Spring scale A is attached to the wall and a rope runs... Problem 86P: 86. Spring scale A is attached to the floor and a rope runs vertically upward, loops over the... Problem 87P: 87. Two springs are connected in series so that spring scale A hangs from a hook on the ceiling and... Problem 88P: 88. A pulley is hung from the ceiling by a rope. A block of mass M is suspended by another rope that... Problem 89P: 89. A 2.0 kg ball tied to a string fixed to the ceiling is pulled to one side by a force . Just... Problem 90P Problem 91P: 91. A 45 N lithograph is supported by two wires. One wire makes a 25° angle with the vertical and... Problem 92P: 92. A crow perches on a clothesline midway between two poles. Each end of the rope makes an angle of... Problem 93P: 93. The drawing shows a wire attached to two back teeth and stretched across a front tooth. The... Problem 94P Problem 95P: 95. Two blocks, masses m1 and m2, are connected by a massless cord. If the two blocks are pulled... Problem 96P: 96. The coefficient of static friction between a block and a horizontal floor is 0.40, while the... Problem 97P: 97. A 2.0 kg toy locomotive is pulling a 1.0 kg caboose. The frictional force of the track on the... Problem 98P: 98. An engine pulls a train of 20 freight cars, each having a mass of 5.0 × 104 kg with a constant... Problem 99P Problem 100P: A horizontal rope is attached from a truck to a 1400 kg car. As the truck tows the car on a... Problem 101P: 101. An accelerometer—a device to measure acceleration—can be as simple as a small pendulum hanging... Problem 102P: 102. A box full of books rests on a wooden floor. The normal force the floor exerts on the box is... Problem 103P: 103. A helicopter is lifting two crates simultaneously. One crate with a mass of 200 kg is attached... Problem 104P: 104. A person stands on a bathroom scale in an elevator. Rank the scale readings from highest to... Problem 105P: 105. Oliver has a mass of 76.2 kg. He is riding in an elevator that has a downward acceleration of... Problem 106P Problem 107P Problem 108P Problem 109P Problem 110P: 110. Yolanda, whose mass is 64.2 kg, is riding in an elevator that has an upward acceleration of... Problem 111P Problem 112P Problem 32CQ Problem 33CQ Problem 34CQ Problem 35CQ Problem 36CQ Problem 114P Problem 116P Problem 117P Problem 113P Problem 3CQ Problem 115P Problem 118P Problem 119P Problem 120P Problem 121P Problem 122P Problem 123P Problem 124P Problem 125P Problem 126P Problem 127P Problem 128P: 134. The tallest spot on Earth is Mt. Everest, which is 8850 m above sea level. If the radius of the... Problem 129P Problem 130P Problem 131P Problem 132P Problem 133P Problem 134P Problem 135P Problem 136P Problem 137P Problem 138P Problem 139P Problem 140P Problem 141P Problem 142P Problem 143P Problem 144P Problem 145P Problem 146P Problem 147P Problem 148P Problem 149P: 155. You want to lift a heavy box with a mass of 98.0 kg using the two-pulley system as shown. With... Problem 150P: 156. A crate of oranges weighing 180 N rests on a flat-bed truck 2.0 m from the back of the truck.... Problem 151P Problem 152P Problem 153P: 159. A helicopter of mass M is lowering a truck of mass m onto the deck of a ship. (a) At first, the... Problem 154P Problem 155P Problem 156P Problem 157P Problem 158P: 164. A person is doing leg lifts with 3.00 kg ankle weights. The lower leg itself has a mass of 5.00... Problem 159P Problem 160P Problem 161P Problem 162P Problem 164P Problem 163P Problem 170P Problem 165P Problem 166P Problem 171P Problem 167P Problem 172P Problem 173P Problem 174P: You are designing a high-speed elevator for a new skyscraper. The elevator will have a mass limit of... Problem 175P Problem 176P Problem 168P Problem 169P format_list_bulleted