University Physics with Modern Physics, Volume 2 (Chs. 21-37); Mastering Physics with Pearson eText -- ValuePack Access Card (14th Edition)
14th Edition
ISBN: 9780134265414
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 5, Problem 5.80P
CP Elevator Design. You are designing an elevator for a hospital. The force exerted on a passenger by the floor of the elevator is not to exceed 1.60 times the passenger’s weight. The elevator accelerates upward with constant acceleration for a distance of 3.0 m and then starts to slow down. What is the maximum speed of the elevator?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A 128 lb person steps into an elevator at the ground floor. The elevator accelerates upward at 5.0 ft/s^2 until reaching a velocity of 24 ft/s. It then holds this velocity until decelerating (a=-5.0 ft/s^2) to a stop at the top floor. What is the normal force on the person in each of the three phases of this trip?
A 7130‑kg car is travelling at 31.7 m/s when the driver decides to exit the freeway by going up a ramp. After coasting 376 m along the exit ramp, the car's speed is 13.1 m/s, and it is ℎ=14.3 m above the freeway. What is the magnitude of the average drag force ?drag exerted on the car?
Fdrag= ? N
A 7780-kg car is travelling at 25.8 m/s when the driver decides to exit the freeway by going up a ramp. After coasting 362 m
along the exit ramp, the car's speed is 13.5 m/s, and it is h = 11.3 m above the freeway. What is the magnitude of the average
drag force Fdrag exerted on the car?
Fdrag
=
N
Chapter 5 Solutions
University Physics with Modern Physics, Volume 2 (Chs. 21-37); Mastering Physics with Pearson eText -- ValuePack Access Card (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
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
26. (II) A person exerts a horizontal force of 42 N on the end of a door 96 cm wide. What is the magnitude of t...
Physics: Principles with Applications
Three alloys at home and to describe the use and properties of each alloy.
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Loosefitting white clothing covering most at the body is ideal for desert dwellers, both in the hot Sun and dur...
College Physics
Professor tests airplane takeoff speed D A Wardle, a professor of physics from the University of Auckland New Z...
College Physics
Set up the circuit containing two bulbs in series as shown. Rank from largest to smallest the currents through ...
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
- Starting 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_forwardYou are quite excited with the lesson in friction that you learned in Physics 1A that you decide to measure the coefficient of kinetic friction of surfaces. You try your idea on a glass surface and a glass cup (mass = 0.15 kg). You set the glass cup moving with an initial speed of 2.8 m/s. After travelling a length of 1 m, it stopped. What then is the coefficient of kinetic friction of the glass-glass surfaces? 0.42 0.94 0.56 O 0.15 0.40 O Oarrow_forwardAn 8.00 kg box sits on a ramp that is inclined at 33.0 above the horizontal. The coefficient of kinetic friction between the box and the surface of the ramp is mk = 0.300. A constant horizontal force F = 26.0 N is applied to the box, and the box moves down the ramp. If the box is initially at rest, what is its speed 2.00 s after the force is applied?arrow_forward
- You are in an elevator that is initially at rest. At t=0, it heads downward and speeds up as a function of time. It experiences a velocity given by v(t) = (−2.00t²ĵ)² m S a) What is the normal force that you experience at t=1.20 s? Assume you have a mass of 70.0 kg. b) How far did the elevator drop in 1.20 s?arrow_forwardSuppose you are at a bowling alley, where a machine uses a constant force and pushes balls up a ramp one meter in length. The balls are sliding -- not rolling -- along the incline, and they end up half a meter above the base of the ramp. Ignore friction. Approximately how much force does the machine put on a 5 kg bowling ball? 1.0 m H 0.5 m 200 N 50 N 25 N O 5N Impossible to determinearrow_forwardA). You push an object, initially at rest, across a frictionless floor with a constant force for a time interval Δt, resulting in a final speed of v for the object. You repeat the experiment, but with a force that is five times as large. What time interval is now required to reach the same final speed v?arrow_forward
- A magician pulls a tablecloth from under a 200 g mug located 15.0 cm from the edge of the cloth. The cloth exerts a friction force of 0.100 N on the mug and is pulled with a constant acceleration of 3.00 m/s2. How far does the mug move relative to the horizontal tabletop before the cloth is completely out from under it? Note that the cloth must move more than 15 cm relative to the tabletop during the process.arrow_forwardDavid throws a 50 kg cart down a ramp with an initial speed of vi = 6 m/s. The ramp is at an angle of 20◦, and the coefficient of kinetic friction between the cart and the ramp is µk = 0.25. Additionally, the coefficient of static friction is µs = 0.55. How much time does it take to reach Ryan who is 10 m away? Assume that the cart slides and doesn’t roll.arrow_forwardA waitress shoves a ketchup bottle with mass 0.45 kg to her right along a smooth, level lunch counter. The bottle leaves her hand moving at 2.0 m>s, then slows down as it slides because of a constant horizontal friction force exerted on it by the countertop. It slides for 1.0 m before coming to rest. What are the magnitude and direction of the friction force acting on the bottle?arrow_forward
- You are pushing a metal crate against a metal floor. The two surfaces have a static coefficient of friction of 0.62 and a kinetic coefficient of friction of 0.50. The floor is horizontal, and the crate has a mass of 25.0 kg. What is the minimum force you need to apply to get the crate moving from rest? Give your answer in units of N, to three significant figures.arrow_forwardAs a van climbs a 35 ° slope at 60 m/s, its driver falls ill and takes his foot off the accelerator pedal. The van stops after 75 m. Since the ill driver cannot use the foot brake and hand brake, the truck starts to move downhill after a moment's stop. After the van slides 40 meters downhill, the driver begins to brake. Since the braking force is 0.5W (W = weight); a- What is the kinetic friction coefficient between the road and the van? b- Calculate the total time it takes until the van comes to the point where the driver got sick while going down the hill. 35°arrow_forwardA dockworker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 13.0 m in a time 4.50 s. What is the mass of the block of ice? If the worker stops pushing at the end of 4.50 s, how far does the block move in the next 4.70 s?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 Learning
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Principles 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
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Mechanical work done (GCSE Physics); Author: Dr de Bruin's Classroom;https://www.youtube.com/watch?v=OapgRhYDMvw;License: Standard YouTube License, CC-BY