College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 27P
* A car moves around a 50-m-radius highway curve. The road, banked at
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A car travels around a 35 m radius unbanked curve. The static friction coefficient between the tires and the road is 0.45. What is the maximum speed at which the car can travel without slipping around this curve?
Multiple Choice
2.8 m/s
27.6 m/s
12.4 m/s
7.5 m/s
A curve in a stretch of highway has radius 512 m. The road is unbanked. The coefficient of static friction between the tires and road is 0.600.
a. What is the maximum safe speed that a car can travel around the curve without skidding? answer in m/s
b. Which of the following is the correct free-body diagram of the car when it enters the curve at a speed greater than the maximum safe speed? (OPTIONS ATTACHED)
c. When the car enters the curve at a speed greater than the maximum safe speed (speed at which the car won’t skid), which of the following statements are correct?
The static frictional force is not large enough to keep the car in a circular path.
The car skids toward the outside of the curve.
The car skids toward the inside of the curve.
The static frictional force is large enough to keep the car in a circular path.
A car drives around two circular curves on two different roads. The two curves have the same
radius of curvature. And coincidentally, the maximum speed that the car can drive through either
of the turns is the same for both roads. The first road is frictionless, but it is banked at 14.5
degrees from the horizontal. The other turn is flat. What is the coefficient of friction between the
car tires and the road on the unbanked turn?
Chapter 5 Solutions
College Physics
Ch. 5 - Review Question 5.1 How do we know that the sum of...Ch. 5 - Review Question 5.2 Why is it true that when an...Ch. 5 - Review Question 5.3 Show that the two expressions...Ch. 5 - Review Question 5.4 Think back to Example 5.5 ...Ch. 5 - Review Question 5.5 A friend says he has heard...Ch. 5 - Which of the objects below is accelerating? Object...Ch. 5 - The circle in Figure Q5.2 represents the path...Ch. 5 - One of your classmates drew a force diagram for a...Ch. 5 - Why is it difficult for a high-speed car to...Ch. 5 - How does a person standing on the ground explain...
Ch. 5 - 6. A pilot performs a vertical loop-the-loop at...Ch. 5 - 7. Why is the following an inaccurate statement...Ch. 5 - 8 Two point-like objects P and Q are undergoing...Ch. 5 - Compare the magnitude of the normal force of a car...Ch. 5 - If you put a penny on the center of a rotating...Ch. 5 - Where on Earths surface would you expect to...Ch. 5 - 12. What observational data might Newton have used...Ch. 5 - What observations combined with his second and...Ch. 5 - What would happen to the force exerted by the Sun...Ch. 5 - James fixes a camera on a tripod and takes several...Ch. 5 - Your friend says that an object weighs less on...Ch. 5 - Your friend says that when an object is moving in...Ch. 5 - Describe three everyday phenomena that are...Ch. 5 - 19. Two identical cars are moving with equal...Ch. 5 - 20. Astronauts on the space station orbiting Earth...Ch. 5 - 21. In the movies you often see space stations...Ch. 5 - 22. Give one example of a situation in which an...Ch. 5 - Name a planet on which you would weigh less than...Ch. 5 - A motorized cart is moving at a constant speed...Ch. 5 - 1. Mountain biker While mountain biking, you first...Ch. 5 - * You swing a rock tied to a string in a vertical...Ch. 5 - * Loop-the-loop You ride a roller coaster with a...Ch. 5 - 4. You start an old record player and notice a bug...Ch. 5 - 5. Determine the acceleration of Earth due to its...Ch. 5 - The Moon is an average distance of 3.8108 m from...Ch. 5 - Aborted plane landing You are on an airplane that...Ch. 5 - BIO Ultracentrifuge You are working in a biology...Ch. 5 - 9. * EST A tire-pressure monitoring system warns...Ch. 5 - Imagine that you are standing on a horizontal...Ch. 5 - 11. * Rolling is a combination of linear and...Ch. 5 - 14. * Consider the scenario described in Problem...Ch. 5 - 15. * You want to determine the radial...Ch. 5 - 16. Ferris wheel You are sitting on a rotating...Ch. 5 - 17. * EST Estimate the radial acceleration of the...Ch. 5 - * EST Estimate the radial acceleration of the toe...Ch. 5 - 19. * Is it safe to drive your 1600-kg car at...Ch. 5 - 20. * You are fixing a broken rotary lawn mower....Ch. 5 - * Your car speeds around the 80-m-radius curved...Ch. 5 - How fast do you need to swing a 200-g ball at the...Ch. 5 - 23. ** A small ball is attached by a string to a...Ch. 5 - A coin rests on a record 0.15 m from its center....Ch. 5 - 25. * Roller coaster ride A roller coaster car...Ch. 5 - * A person sitting in a chair (combined mass 80...Ch. 5 - 27. * A car moves around a 50-m-radius highway...Ch. 5 - 28. * A 20.0-g ball is attached to a 120-cm-long...Ch. 5 - 29. A 50-kg ice skater goes around a circle of...Ch. 5 - * A car traveling at 10 m/s passes over a hill on...Ch. 5 - 31. A 1000-kg car is moving at 30 m/s around a...Ch. 5 - * Equation Jeopardy 1 Describe using words, a...Ch. 5 - ** Banked curve raceway design You need to design...Ch. 5 - * A circular track is in a horizontal plane, has a...Ch. 5 - 36. ** Design a quantitative test for Newton’s...Ch. 5 - 37. * Your friend says that the force that the Sun...Ch. 5 - Determine the gravitational force that (a) the Sun...Ch. 5 - 39. * (a) What is the ratio of the gravitational...Ch. 5 - 40. ** EST Estimate (a) the average distance...Ch. 5 - 41. * EST The average radius of Earth s orbit...Ch. 5 - * The Moon travels in a 3.8105-km-radius orbit...Ch. 5 - 43. * Determine the ratio of Earth’s gravitational...Ch. 5 - 44. * Determine the magnitude of the gravitational...Ch. 5 - 45. * When you stand on a bathroom scale here on...Ch. 5 - 46. The free-fall acceleration on the surface of...Ch. 5 - 47.* A satellite moves in a circular orbit a...Ch. 5 - 48. * Mars has a mass of kg and a radius of m....Ch. 5 - 49. * Determine the speed a projectile must reach...Ch. 5 - 50. ** Determine the distance above Earth’s...Ch. 5 - 51. *Determine the period of an Earth satellite...Ch. 5 - 52. * A spaceship in outer space has a doughnut...Ch. 5 - 53. * Using the velocity change method from...Ch. 5 - 54. * Loop-the-loop You have to design a...Ch. 5 - ** A Tarzan swing Tarzan (mass 80 kg) swings at...Ch. 5 - 56. * (a) If the masses of Earth and the Moon were...Ch. 5 - 57. * EST Estimate the radial acceleration of the...Ch. 5 - 58. ** EST Estimate the force exerted by the tire...Ch. 5 - 59. ** EST Estimate the maximum radial force that...Ch. 5 - 60. * EST Estimate the force exerted by the wheel...Ch. 5 - Lucia's bathroom scale on the equator reads 110 lb...Ch. 5 - ** Demolition An old building is being demolished...Ch. 5 - 65. Designing a banked roadway You need to design...Ch. 5 - * Evaluation question You find the following in a...Ch. 5 - 67. * Suppose that Earth rotated much faster on...Ch. 5 - 68. * On Earth, an average person’s vertical jump...Ch. 5 - 69. * You read in a science magazine that on the...Ch. 5 - 70. * Determining the forces between powders and...Ch. 5 - ** Isabel notices that if she places a small...Ch. 5 - Texas Motor Speedway On October 28, 2000 Gil de...Ch. 5 - Texas Motor Speedway On October 28, 2000 Gil de...Ch. 5 - Texas Motor Speedway On October 28, 2000 Gil de...Ch. 5 - Texas Motor Speedway On October 28, 2000 Gil de...Ch. 5 - Texas Motor Speedway On October 28, 2000 Gil de...Ch. 5 - Halley's Comet Edmond Halley was the first to...Ch. 5 - Halley's Comet Edmond Halley was the first to...Ch. 5 - Halley's Comet Edmond Halley was the first to...Ch. 5 - Halley's Comet Edmond Halley was the first to...Ch. 5 - Halley's Comet Edmond Halley was the first to...Ch. 5 - Halley's Comet Edmond Halley was the first to...
Additional Science Textbook Solutions
Find more solutions based on key concepts
The correct option.
College Physics: A Strategic Approach (3rd Edition)
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
The angular momentum after 0.65 s .
Physics (5th Edition)
13. Each of the following vectors is given in terms of its x- and y-components. Draw the vector, label an angle...
College Physics: A Strategic Approach (4th Edition)
Choose the best answer to each of the following. Explain your reasoning. 1.Measurement of how orbital aur vital...
The Cosmic Perspective Fundamentals (2nd Edition)
62. A 5.00 g bullet traveling horizontally at 450 m/s is shot through a 1.00 kg wood block suspended on a strin...
College Physics (10th Edition)
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
- Two banked curves have the same radius. Curve A is banked at 11.4 °, and curve B is banked at an angle of 16.5 °. A car can travel around curve A without relying on friction at a speed of 19.2 m/s. At what speed can this car travel around curve B without relying on friction? Number i Unitsarrow_forwardA car with mass m = 1000 kg completes a turn of radius r = 950 m at a constant speed of v = 25 m/s. As the car goes around the turn, the tires are on the verge of slipping. Assume that the turn is on a level road, i.e. the road is not banked at an angle. a. What is the numeric value of the coefficient of static friction, μs, between the road and tires?arrow_forward25. D Before attempting this problem, review Examples 7 and 8. Two curves on a highway have the same radii. However, one is un- banked and the other is banked at an angle 0. A car can safely travel along the unbanked curve at a maximum speed vo under conditions when the coefficient of static friction between the tires and the road is µ, = 0.81. The banked curve is frictionless, and the car can nego- tiate it at the same maximum speed v,. Find the angle 0 of the banked curve.arrow_forward
- The car has a speed of 15 m/s at the top of a hump when the driver applies the brakes, causing a deceleration of 0,5g. The radius of curvature p= 69m. The coefficient of static friction between the package and seat cushion is 0,2. 0 Horizontal Seat cushion A What is the minimum seat cushion angle 8 for which a package will not slide forward?arrow_forwardW n 90° 0 = 18° R 0 = 18° Determine the rated speed of a highway curve of radius p= 120 m banked through an angle 0= 18°. The rated speed of a banked highway curve is the speed at which a car should travel if no lateral friction force is to be exerted at its wheels.arrow_forwardA car is safely negotiating an unbanked circular turn at a speed of 29 m/s. The road is dry, and the maximum static frictional force acts on the tires. Suddenly a long wet patch in the road decreases the maximum static frictional force to one- sixth of its dry-road value. If the car is to continue safely around the curve, to what speed must the driver slow the car? m/sarrow_forward
- Q. A large vertical cylinder spins about its axis fast enough that any person inside is held up against the wall when drops away from the floor. The coefficient of static friction between person and the wall is u, = 0.35, and the radius of cylinder r = 2m. What is the maximum (linear) speed necessary to keep person from falling? (g = 9.80) m A B C D E 7.48 m/s 5.50 m/s 3.28 m/s 9.80 m/s 11.48 m/sarrow_forwardA car rounds an unbanked (level) curve of radius 76 m. If the coefficient of static friction between the road and car is 0.56, what is the maximum speed at which the car traverses the curve without slipping? V= Question Help: m/s Submit Question Hint 1 Readarrow_forwardA car is safely negotiating an unbanked circular turn at a speed of 15 m/s. The road is dry, and the maximum static frictional force acts on the tires. Suddenly a long wet patch in the road decreases the maximum static frictional force to one-fifth of its dry-road value. If the car is to continue safely around the curve, to what speed must the driver slow the car? m/sarrow_forward
- A curve in a stretch of highway has radius 512 m. The road is unbanked. The coefficient of static friction between the tires and road is 0.700. What is the maximum safe speed that a car can travel around the curve without skidding?arrow_forwardA flat (unbanked) curve on a highway has a radius of 182.5 m. A car rounds the curve at a speed of 35.0 m/s. a. What is the minimum coefficient of static friction that will prevent sliding? b. Suppose that the highway is icy and the coefficient of static friction between the tires and pavement is only one-third of what you found in part (a). What should be the maximum speed of the car so that it can round the curve safely?arrow_forward14. A car travels at constant speed around a circular curve. If the car is to avoid sliding outward, the horizontal frictional force F exerted by the road on the tires must at least balance the centrifugal force pulling outward. A 3600-pound automobile is negotiating a circular interchange of radius 300 feet at 30 miles per hour. a. b. Assuming the roadway is level, find the magnitude of the force between the tires and the road such that the car stays on the circular path and does not skid. (Hint: the car's weight Wmg; use g - 32 ft/sec².) Find the angle the roadway should be banked so that no lateral frictional force is exerted on the tires of the automobile. my² F maarrow_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
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Rotational Kinematics Physics Problems, Basic Introduction, Equations & Formulas; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=0El-DqrCTZM;License: Standard YouTube License, CC-BY