University Physics with Modern Physics (14th Edition)
14th Edition
ISBN: 9780321973610
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 5, Problem 5.25E
BIO The Trendelenburg Position. After emergencies with major blood loss, a patient is placed in the Trendelenburg position, in which the foot of the bed is raised to get maximum blood flow to the brain. If the coefficient of static friction between a typical patient and the bedsheets is 1.20, what is the maximum angle at which the bed can be tilted with respect to the floor before the patient begins to slide?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
I need help with this Hw Problem.
Before the drawbridge starts to open, it is perfectly level with the ground. The dancer is standing still on one leg. What is the horizontal component of the friction force f⃗ ?
Express your answer in terms of some or all of the variables n, μs, and/or μk.
Baldwin Young is conducting his famous toupee experiments. He tips his head at a given angle and determines the coefficient of static and kinetic friction between a toupee (which is probably his own) and his scalp. At an angle of just barely 17.5 degrees, the toupee begins to accelerate from rest. Then Baldwin lowers the angle to 13.8 degrees to observe that the toupee moves with a constant speed. Use this information to determine the coefficients of both static and kinetic friction. Begin with a free-body diagram. PSYW
Chapter 5 Solutions
University Physics with Modern Physics (14th Edition)
Ch. 5.1 - A traffic light of weight w hangs from two...Ch. 5.2 - Suppose you hold the glider in Example 5.12 so...Ch. 5.3 - Consider a box that is placed on different...Ch. 5.4 - Satellites are held in orbit by the force of our...Ch. 5 - A man sits in a seat that is hanging from a rope....Ch. 5 - In general, the normal force is not equal to the...Ch. 5 - A clothesline hangs between two poles. No matter...Ch. 5 - You drive a car up a steep hill at constant speed....Ch. 5 - For medical reasons, astronauts in outer space...Ch. 5 - To push a box up a ramp, which requires less...
Ch. 5 - A woman in an elevator lets go of her briefcase,...Ch. 5 - A block rests on an inclined plane with enough...Ch. 5 - A crate slides up an inclined ramp and then slides...Ch. 5 - A crate of books rests on a level floor. To move...Ch. 5 - In a world without friction, which of the...Ch. 5 - When you stand with bare feet in a wet bathtub,...Ch. 5 - You are pushing a large crate from the back of a...Ch. 5 - It is often said that friction always opposes...Ch. 5 - If there is a net force on a particle in uniform...Ch. 5 - A curve in a road has a bank angle calculated and...Ch. 5 - You swing a ball on the end of a lightweight...Ch. 5 - The centrifugal force is not included in the...Ch. 5 - A professor swings a rubber stopper in a...Ch. 5 - To keep the forces on the riders within allowable...Ch. 5 - A tennis ball drops from rest at the top of a tall...Ch. 5 - You throw a baseball straight upward with speed 0....Ch. 5 - You throw a baseball straight upward. If you do...Ch. 5 - You have two identical tennis balls and fill one...Ch. 5 - A ball is dropped from rest and feels air...Ch. 5 - A ball is dropped from rest and feels air...Ch. 5 - When a balled baseball moves with air drag, when...Ch. 5 - A ball is thrown from the edge of a high cliff....Ch. 5 - Two 25.0-N weights are suspended at opposite ends...Ch. 5 - In Fig. E5.2 each of the suspended blocks has...Ch. 5 - A 75.0-kg wrecking ball hangs from a uniform,...Ch. 5 - BIO Injuries to the Spinal Column. In the...Ch. 5 - A picture frame hung against a wall is suspended...Ch. 5 - A large wrecking ball is held in place by two...Ch. 5 - Find the tension in each cord in Fig. E5.7 if the...Ch. 5 - A 1130-kg car is held in place by a light cable on...Ch. 5 - A man pushes on a piano with mass 180 kg; it...Ch. 5 - In Fig. E5.10 the weight w is 60.0 N. (a) What is...Ch. 5 - BIO Stay Awake! An astronaut is inside a 2.25 106...Ch. 5 - A rocket of initial mass 125 kg (including all the...Ch. 5 - CP Genesis Crash. On September 8, 2004, the...Ch. 5 - Three sleds are being pulled horizontally on...Ch. 5 - Atwoods Machine. A 15.0-kg load of bricks hangs...Ch. 5 - CP An 8.00-Kg block of ice, released from rest at...Ch. 5 - A light rope is attached to a block with mass 4.00...Ch. 5 - CP Runway Design. A transport plane lakes off from...Ch. 5 - CP A 750.0-kg boulder is raised from a quarry 125...Ch. 5 - Apparent Weight. A 550-N physics student stands on...Ch. 5 - CP BIO Force During a Jump. When jumping straight...Ch. 5 - CP CALC A 2540-kg test rocket is launched...Ch. 5 - CP CALC A 2.00-kg box is moving to the right with...Ch. 5 - CP CALC A 5.00-kg crate is suspended from the end...Ch. 5 - BIO The Trendelenburg Position. After emergencies...Ch. 5 - In a laboratory experiment on friction, a 135-N...Ch. 5 - CP A stockroom worker pushes a box with mass 16.8...Ch. 5 - A box of bananas weighing 40.0 N rests on a...Ch. 5 - A 45.0-kg crate of tools rests on a horizontal...Ch. 5 - Some sliding rocks approach the base of a hill...Ch. 5 - A box with mass 10.0 kg moves on a ramp that is...Ch. 5 - A pickup truck is carrying a toolbox, but the rear...Ch. 5 - You are lowering two boxes, one on top of the...Ch. 5 - Consider the system shown in Fig. E5.34. Block A...Ch. 5 - CP Stopping Distance. (a) If the coefficient of...Ch. 5 - CP A 25.0-kg box of textbooks rests on a loading...Ch. 5 - Two crates connected by a rope lie on a horizontal...Ch. 5 - A box with mass m is dragged across a level floor...Ch. 5 - CP As shown in Fig. E5.34, block A (mass 2.25 kg)...Ch. 5 - You throw a baseball straight upward. The drag...Ch. 5 - A large crate with mass m rests on a horizontal...Ch. 5 - (a) In Example 5.18 (Section 5.3), what value of D...Ch. 5 - A stone with mass 0.80 kg is attached to one end...Ch. 5 - BIO Force on a Skaters Wrist. A 52-kg ice skater...Ch. 5 - A small remote-controlled car with mass 1.60 kg...Ch. 5 - 5.46A small car with mass 0.800 kg travels at...Ch. 5 - A small model car with mass m travels at constant...Ch. 5 - A flat (unbanked) curve on a highway has a radius...Ch. 5 - A 1125-kg car and a 2250-kg pickup truck approach...Ch. 5 - The Giant Swing at a county fair consists of a...Ch. 5 - In another version of the Giant Swing (see...Ch. 5 - A small button placed on a horizontal rotating...Ch. 5 - Rotating Space Stations. One problem for humans...Ch. 5 - The Cosmo Clock 21 Ferris wheel in Yokohama,...Ch. 5 - An airplane flies in a loop (a circular path in a...Ch. 5 - A 50.0-kg stunt pilot who has been diving her...Ch. 5 - Stay Dry! You tie a cord to a pail of water and...Ch. 5 - A bowling ball weighing 71.2 N (16.0 lb) is...Ch. 5 - BIO Effect on Blood of Walking. While a person is...Ch. 5 - An adventurous archaeologist crosses between two...Ch. 5 - Two ropes are connected to a steel cable that...Ch. 5 - In Fig. P5.62 a worker lifts a weight w by pulling...Ch. 5 - In a repair shop a truck engine that has mass 409...Ch. 5 - A horizontal wire holds a solid uniform ball of...Ch. 5 - A solid uniform 45.0-kg ball of diameter 32.0 cm...Ch. 5 - CP A box is sliding with a constant speed of 4.00...Ch. 5 - CP BIO Forces During Chin-ups. When you do a...Ch. 5 - CP CALC A 2.00-kg box is suspended from the end of...Ch. 5 - CALC A 3.00-kg box that is several hundred meters...Ch. 5 - CP A 5.00-kg box sits at rest at the bottom of a...Ch. 5 - Two boxes connected by a light horizontal rope are...Ch. 5 - A 6.00-kg box sits on a ramp that is inclined at...Ch. 5 - CP An 8.00-kg box sits on a ramp that is inclined...Ch. 5 - CP In Fig. P5.74, m1 = 20.0 kg and = 53.1. The...Ch. 5 - CP You place a book of mass 5.00 kg against a...Ch. 5 - Block A in Fig. P5.76 weighs 60.0 N. The...Ch. 5 - A block with mass m1 is placed on an inclined...Ch. 5 - BIO The Flying Leap of a Flea. High-speed motion...Ch. 5 - Block A in Fig. P5.79 weighs 1.20 N, and block B...Ch. 5 - CP Elevator Design. You are designing an elevator...Ch. 5 - CP CALC You are standing on a bathroom scale in an...Ch. 5 - A hammer is hanging by a light rope from the...Ch. 5 - A 40.0-kg packing case is initially at rest on the...Ch. 5 - If the coefficient of static friction between a...Ch. 5 - Two identical 15.0-kg balls, each 25.0 cm in...Ch. 5 - CP Traffic Court. You are called as an expert...Ch. 5 - Block A in Fig. P5.87 weighs 1.90 N, and block B...Ch. 5 - CP Losing Cargo. A 12.0-kg box rests on the level...Ch. 5 - Block A in Fig. P5.89 has mass 4.00 kg, and block...Ch. 5 - Two blocks connected by a cord passing over a...Ch. 5 - In terms of m1, m2, and g, find the acceleration...Ch. 5 - Block B, with mass 5.00 kg, rests on block A, with...Ch. 5 - Two objects, with masses 5.00 kg and 2.00 kg, hang...Ch. 5 - Friction in an Elevator. You are riding in an...Ch. 5 - A block is placed against the vertical front of a...Ch. 5 - Two blocks, with masses 4.00 kg and 8.00 kg, are...Ch. 5 - Block A, with weight 3w, slides down an inclined...Ch. 5 - Jack sits in the chair of a Ferris wheel that is...Ch. 5 - Bunked Curve I. A curve with a 120-m radius on a...Ch. 5 - Banked Curve II. Consider a wet roadway banked as...Ch. 5 - Blocks A, B, and C are placed as in Fig. P5.101...Ch. 5 - You are riding in a school bus. As the bus rounds...Ch. 5 - CALC You throw a rock downward into water with a...Ch. 5 - A 4.00-kg block is attached to a vertical rod by...Ch. 5 - On the ride Spindletop at the amusement park Six...Ch. 5 - A 70-kg person rides in a 30-kg cart moving at 12...Ch. 5 - A small bead can slide without friction on a...Ch. 5 - A physics major is working to pay her college...Ch. 5 - DATA In your physics lab, a block of mass m is at...Ch. 5 - DATA A road heading due cast passes over a small...Ch. 5 - DATA You are an engineer working for a...Ch. 5 - Moving Wedge. A wedge with mass M rests on a...Ch. 5 - Figure P5.112 5.113A wedge with mass M rests on a...Ch. 5 - Double Atwoods Machine. In Fig. P5.114 masses m1...Ch. 5 - A ball is held at rest at position A in Fig....Ch. 5 - FRICTION AND CLIMBING SHOES. Shoes made for the...Ch. 5 - FRICTION AND CLIMBING SHOES. Shoes made for the...Ch. 5 - FRICTION AND CLIMBING SHOES. Shoes made for the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Choose the best answer to each of the following. Explain your reasoning. Which of these galaxies is likely to b...
The Cosmic Perspective Fundamentals (2nd Edition)
Describe the composition and temperature of the equilibrium mixture after 1.0 kg of ice at 40C is added to 1.0 ...
Essential University Physics (3rd Edition)
On takeoff, the propellers on a UAV (unmanned aerial vehicle) increase their angular velocity form rest at a ra...
University Physics Volume 1
What is a likely cause of Earths magnetic field?
Conceptual Integrated Science
24. 24 yd2 = ____________ft2
Applied Physics (11th Edition)
Rank the magnitudes of all the horizontal forces on your diagrams. If any of the horizontal forces have the sam...
Tutorials in Introductory Physics
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
- A filled treasure chest (m = 375 kg) with a long rope tied around its center lies in the middle of a room. Dirk wishes to drag the chest, but there is friction between the chest and the floor with s = 0.52. If the angle between the rope and the floor is 30.0, what is the magnitude of the tension required to just get the chest moving?arrow_forwardStarting from rest, a rectangular toy block with mass 300 g slides in 1.30 s all the way across a table 1.20 m in length that Zak has tilted at an angle of 42.0 to the horizontal. a. What is the magnitude of the acceleration of the toy block? b. What is the coefficient of kinetic friction between the block and the table? c. What are the magnitude and direction of the friction force acting on the block? d. What is the speed of the block when it is at the end of the table, having slid a distance of 1.20 m?arrow_forwardThe shower curtain rod in Figure P6.7 is called a tension rod. The rod is not attached to the wall with screws, nails, or glue, but is pressed into the wall instead. Explain why the rod remains at rest, supporting the curtain. Explain why the name is misleading and come up with a better name. FIGURE P6.7arrow_forward
- A fishnet consists of 1 mm diameter strings which form a pattern of 1 cm x 1 cm squares. Estimate the drag to pull a square meter of net at 3 m/s normal to its plane. Treat each string as independent from the others 926 N O 1500 N 300 M 400 Narrow_forwardAn automobile is going up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between the tires and the road is 0.7. a) What minimum distance does it take to stop the car? b) What minimum distance would it take to stop the car if it were going down the grade?arrow_forwardA. C. D. A motorcyclist is cornering on a curved race track. Which combination of changes of banking angle and coefficient of friction u between the tyres and road allows the motorcyclist to travel around the corner at greater speed? Banking angle 8 increase increase decrease decrease 0 cornering Coefficient of friction μ increase decrease cornering increase decreasearrow_forward
- A 45 kg box is at rest at one end of a 2 meter board. That end of the board is slowly raised at an incline until the box starts to slide. At that point, the angle is at 34 degrees. The coefficient of kinetic friction is 0.50N. Please help me calculate the coefficient of static friction between both the box and the board?arrow_forwardBOGART IS AN ADVENTUROUS MAN. HE WANTS TO CROSS THE 12-FT PLANK, WHICH COEFFICIENT OF FRICTION AT THE CONTACT POINTS A AND B IS µs = 0.4. AT WHAT DISTANCE x WILL BOGART START TO REALIZE THAT NOT EVERYTHING IN LIFE IS AN ADVENTURE (HE WILL REALIZE THE PLANK WILL SLIP!). ASSUME BOGART'S WEIGHT AS 85 LB. В 45° 15° 60°arrow_forwardThis first part is at a angle of 30 degrees and it's 3 meters long. The other is at 45 degrees and it's 4 meters long. The entire ramp sits on a table that is 5 meters high. The first part is frictionless. The second part has a kinetic friction coefficient of 1. Assume that an object starts from rest on the first part and slides onto the second and then flies into the air exhibiting projectile motion under gravity. A) How far from the edge of the table will the object hit the floor? B) Total time from start to finish? C) Speed at the end of ramp 1? D) speed and velocity at the end of ramp 2? E) speed, velocity, angle when it impacts the floor?arrow_forward
- You are sitting on the edge of a horizontal disk (for example, a playground merry-go-round) that has radius 3.00 mm and is rotating at a constant rate about a vertical axis. The coefficient of static friction between you and the surface of the disk is 0.430. a) What is the minimum time for one revolution of the disk if you are not to slide off? b) Your friend's weight is half yours. If the coefficient of static friction for him is the same as for you, what is the minimum time for one revolution if he is not to slide off?arrow_forwardA physics textbook weighing 23 N rests on a desk. The coefficient of static friction between t then slowly decreases to 5.0 N, as indicated in the table below. e book and the desk is A, = 0.60; the coefficient of kinetic friction is lt = 0.40. You push horizontally on the book with a force that gradually increases from 0 to 15 N, and Part A For each value of the applied force given in the table, give the magnitude of the force of friction and state whether the book is accelerating, decelerating, at rest, or moving with constant speed. Drag the appropriate labels to their respective targets. Labels can be used once, more than once, or not at all. Reset Help At rest Applied force Friction force Motion 11 N 9.2 N 5.0 N 11 N 5.0 Ν 15 N ON 11 N Accelerating 8.0 N Decelerating 5.0 N Moving with canstant speedarrow_forwardA typical jar that has been tightened to a reasonable degree requires 2.0 N⋅mN⋅m to open. f you grab a 8.2-cmcm-diameter jar lid with one hand so that your thumb and fingers exert equal magnitude forces on opposite sides of the lid, as in the figure, what is the magnitude of each of the forces?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Newton's Second Law of Motion: F = ma; Author: Professor Dave explains;https://www.youtube.com/watch?v=xzA6IBWUEDE;License: Standard YouTube License, CC-BY