1 Introduction And Vectors 2 Motion In One Dimension 3 Motion In Two Dimensions 4 The Laws Of Motion 5 More Applications Of Newton’s Laws 6 Energy Of A System 7 Conservation Of Energy 8 Momentum And Collisions 9 Relativity 10 Rotational Motion 11 Gravity, Planetary Orbits, And The Hydrogen Atom 12 Oscillatory Motion 13 Mechanical Waves 14 Superposition And Standing Waves 15 Fluid Mechanics 16 Temperature And The Kinetic Theory Of Gases 17 Energy In Thermal Processes: The First Law Of Thermodynamics 18 Heat Engines, Entropy, And The Second Law Of Thermodynamics 19 Electric Forces And Electric Fields 20 Electric Potential And Capacitance 21 Current And Direct Current Circuits 22 Magnetic Forces And Magnetic Fields 23 Faraday’s Law And Inductance 24 Electromagnetic Waves 25 Reflection And Refraction Of Light 26 Image Formation By Mirrors And Lenses 27 Wave Optics 28 Quantum Physics 29 Atomic Physics 30 Nuclear Physics 31 Particle Physics Chapter5: More Applications Of Newton’s Laws
5.1 Forces Of Friction 5.2 Extending The Particle In Uniform Circular Motion Model 5.3 Nonuniform Circular Motion 5.4 Motion In The Presence Of Velocity-dependent Resistive Forces 5.5 The Fundamental Forces Of Nature 5.6 Context Connection: Drag Coefficients Of Automobiles Chapter Questions Section: Chapter Questions
Problem 1OQ: The driver of a speeding empty truck slams on the brakes and skids to a stop through a distance d.... Problem 2OQ: The manager of a department store is pushing horizontally with a force of magnitude 200 N on a box... Problem 3OQ: An object of mass m moves with acceleration a down a rough incline. Which of the following forces... Problem 4OQ: An office door is given a sharp push and swings open against a pneumatic device that slows the door... Problem 5OQ Problem 6OQ: A pendulum consists of a small object called a bob hanging from a light cord of fixed length, with... Problem 7OQ: A door in a hospital has a pneumatic closer that pulls the door shut such that the doorknob moves... Problem 8OQ: The driver of a speeding truck slams on the brakes and skids to a stop through a distance d. On... Problem 9OQ: A child is practicing for a BMX race. His speed remains constant as he goes counterclockwise around... Problem 10OQ: A large crate of mass m is placed on the flatbed of a truck but not tied down. As the truck... Problem 11OQ: Before takeoff on an airplane, an inquisitive student on the plane dangles an iPod by its earphone... Problem 12OQ Problem 13OQ: As a raindrop falls through the atmosphere, its speed initially changes as it falls toward the... Problem 14OQ: An object of mass m is sliding with speed vi at some instant across a level tabletop, with which its... Problem 1CQ: A car is moving forward slowly and is speeding up. A student claims that the car exerts a force on... Problem 2CQ Problem 3CQ Problem 4CQ Problem 5CQ Problem 6CQ Problem 7CQ Problem 8CQ Problem 9CQ Problem 10CQ Problem 11CQ: It has been suggested that rotating cylinders about 20 km in length and 8 km in diameter be placed... Problem 12CQ Problem 13CQ: Why does a pilot tend to black out when pulling out of a steep dive? Problem 1P Problem 2P Problem 3P Problem 4P Problem 5P Problem 6P: The person in Figure P5.6 weighs 170 lb. As seen from the front, each light crutch makes an angle of... Problem 7P: A 9.00-kg hanging object is connected by a light, inextensible cord over a light, frictionless... Problem 8P Problem 9P: A 3.00-kg block starts from rest at the top of a 30.0 incline and slides a distance of 2.00 m down... Problem 10P Problem 11P Problem 12P: A block of mass 3.00 kg is pushed up against a wall by a force P that makes an angle of = 50.0 with... Problem 13P: Two blocks connected by a rope of negligible mass are being dragged by a horizontal force (Fig.... Problem 14P: Three objects are connected on a table as shown in Figure P5.14. The coefficient of kinetic friction... Problem 15P: Why is the following situation impossible? Your 3.80-kg physics book is placed next to you on the... Problem 16P Problem 17P: A light string can support a stationary hanging load of 25.0 kg before breaking. An object of mass m... Problem 18P: Why is the following situation impossible? The object of mass m = 4.00 kg in Figure P5.18 is... Problem 19P: A crate of eggs is located in the middle of the flatbed of a pickup truck as the truck negotiates a... Problem 20P Problem 21P Problem 22P: A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates... Problem 23P Problem 24P Problem 25P Problem 26P: A pail of water is rotated in a vertical circle of radius 1.00 m. (a) What two external forces act... Problem 27P Problem 28P: A child of mass m swings in a swing supported by two chains, each of length R. If the tension in... Problem 29P Problem 30P: (a) Estimate the terminal speed of a wooden sphere (density 0.830 g/cm3) falling through air, taking... Problem 31P Problem 32P Problem 33P Problem 34P: A 9.00-kg object starting from rest falls through a viscous medium and experiences a resistive force... Problem 35P Problem 36P Problem 37P Problem 38P Problem 39P Problem 40P Problem 41P Problem 42P Problem 43P: Consider the three connected objects shown in Figure P5.43. Assume first that the inclined plane is... Problem 44P: A car rounds a banked curve as discussed in Example 6.4 and shown in Figure 6.5. The radius of... Problem 45P Problem 46P: An aluminum block of mass m1 = 2.00 kg and a copper block of mass m2 = 6.00 kg are connected by a... Problem 47P: Figure P5.47 shows a photo of a swing ride at an amusement park. The structure consists of a... Problem 48P: Why is the following situation impossible? A 1.30-kg toaster is not plugged in. The coefficient of... Problem 49P: A space station, in the form of a wheel 120 m in diameter, rotates to provide an artificial gravity... Problem 50P: A 5.00-kg block is placed on top of a 10.0-kg block (Fig. P5.50). A horizontal force of 45.0 N is... Problem 51P: In Example 6.5, we investigated the forces a child experiences on a Ferris wheel. Assume the data in... Problem 52P Problem 53P Problem 54P Problem 55P Problem 56P Problem 57P Problem 58P: Why is the following situation impossible? A book sits on an inclined plane on the surface of the... Problem 59P: A single bead can slide with negligible friction on a stiff wire that has been bent into a circular... Problem 60P: An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough... Problem 61P Problem 62P Problem 63P Problem 64P: If a single constant force acts on an object that moves on a straight line, the objects velocity is... Problem 6P: The person in Figure P5.6 weighs 170 lb. As seen from the front, each light crutch makes an angle of...
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A horizontal force drags a box across a floor. If another force of the same magnitude but an angle above the horizontal is applied, the force of kinetic friction:
Definition Definition Force that opposes motion when the surface of one item rubs against the surface of another. The unit of force of friction is same as the unit of force.
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