Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
4th Edition
ISBN: 9780133953145
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 8, Problem 51EAP
In an amusement park ride called The Roundup, passengers stand inside a 16-m-diameter rotating ring. After the ring has acquired sufficient speed, it tilts into a vertical plane, as shown in FIGURE P8.51.
a. Suppose the ring rotates once every 4.5 s. If a rider’s mass is 55 kg, with how much force does the ring push on her at the top of the ride? At the bottom?
b. What is the longest rotation period of the wheel that will prevent the riders from falling off at the top?
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule03:30
Students have asked these similar questions
In an amusement park ride called The Roundup, passengers stand inside a 18 m diameter rotating ring. After the ring has acquired sufficient speed, it tilts into a vertical plane. Consider that a rider has a mass of 61 kg.
a. Suppose the ring rotates once every 6 s. How much force does the ring push on her at the top of the ride?
Ftop = N
b. Suppose the ring rotates once every 4.5 s. How much force does the ring push on her at the bottom of the ride?
Fbot = N
c. What is the longest rotation period of the wheel that will prevent the riders from falling off at the top?
T = s
A couple of astronauts agree to rendezvous in space after hours. Their plan is to let gravity
bring them together. One of them has a mass of 65.0 kg and the other a mass of 72.0 kg
and they start from rest 20.0 m apart.
a. Draw a free-body diagram of each astronaut, and use it to find his or her initial
acceleration. As a rough approximation, we can model the astronauts as uniform
spheres.
b. If the astronauts' acceleration remained constant, how many days would they have
to wait before reaching each other? Careful! They both have acceleration toward
each other!
c. Would their acceleration, in fact, remain constant? If not, would it increase or
decrease? Why?
2. A 175-kg roller coaster car is supposed to make a vertical loop with a diameter of 13.5 m, with the
car on the inside of the loop.
a.
What is the minimum speed of the car at the top of the loop so that it doesn't come off of
the tracks and fall to the ground?
b. If the car is traveling at twice that speed, what is the magnitude of the normal force exerted
on the car by the tracks?
Chapter 8 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
Ch. 8 - In uniform circular motion, which of the following...Ch. 8 - A car runs out of gas while driving down a hill....Ch. 8 - FIGURE Q8.3 is a bird's-eye view of particles on...Ch. 8 - Tarzan swings through the jungle on a massless...Ch. 8 - FIGURE Q8.5 shows two balls of equal mass moving...Ch. 8 - Ramon and Sally are observing a toy car speed up...Ch. 8 - A jet plane is flying on a level course at...Ch. 8 - A small projectile is launched parallel to the...Ch. 8 - 9. You can swing a ball on a string in a vertical...Ch. 8 - A golfer starts with the club over her head and...
Ch. 8 - As a science fair project, you want to launch an...Ch. 8 - A 500 g model rocket is on a cart that is rolling...Ch. 8 - A 4.0 × 1010 kg asteroid is heading directly...Ch. 8 - A 55 kg astronaut who weighs 180 N on a distant...Ch. 8 - A 1500 kg car drives around a flat 200-m-diameter...Ch. 8 - A 1500 kg car takes a 50-m-radius unbanked curve...Ch. 8 - A 200 g block on a 50-cm-long string swings in a...Ch. 8 - In the Bohr model of the hydrogen atom, an...Ch. 8 - Suppose the moon were held in its orbit not by...Ch. 8 - 10. A highway curve of radius 500 m is designed...Ch. 8 - It is proposed that future space stations create...Ch. 8 - A 5.0 g coin is placed 15 cm from the center of a...Ch. 8 - Mass m1on the frictionless table of FIGURE EX8.13...Ch. 8 - A satellite orbiting the moon very near the...Ch. 8 - What is free-fall acceleration toward the sun at...Ch. 8 - 16. A 9.4 × 1021 kg moon orbits a distant planet...Ch. 8 - Communications satellites are placed in circular...Ch. 8 - A car drives over the top of a hill that has a...Ch. 8 - The weight of passengers on a roller coaster...Ch. 8 - A roller coaster car crosses the top of a circular...Ch. 8 - The normal force equals the magnitude of the...Ch. 8 - A student has 65-cm-long arms. What is the minimum...Ch. 8 - While at the county fair, you decide to ride the...Ch. 8 - A 500 g ball swings in a vertical circle at the...Ch. 8 - A 500 g ball moves in a vertical circle on a...Ch. 8 - A heavy ball with a weight of 100 N (m = 10.2 kg)...Ch. 8 - A toy train rolls around a horizontal...Ch. 8 - 28. A new car is tested on a 200-m-diameter track....Ch. 8 - An 85,000 kg stunt plane performs a loop-the-loop,...Ch. 8 - Three cars are driving at 25 m/s along the road...Ch. 8 - Derive Equations 8.3 for the acceleration of a...Ch. 8 - 32. A 100 g bead slides along a frictionless wire...Ch. 8 - 33. Space scientists have a large test chamber...Ch. 8 - 34. A 5000 kg interceptor rocket is launched at an...Ch. 8 - Prob. 35EAPCh. 8 - 36. A rocket- powered hockey puck has a thrust of...Ch. 8 - Prob. 37EAPCh. 8 - A 2.0 kg projectile with initial velocity m/s...Ch. 8 - A 75 kg man weighs himself at the north pole and...Ch. 8 - A concrete highway curve of radius 70 m banked at...Ch. 8 - a. an object of mass m swings in horizontal circle...Ch. 8 -
42. You’ve taken your neighbor’s young child to...Ch. 8 - A 4.4-cm-diameter, 24 g plastic ball is attached...Ch. 8 - A charged particle of mass m moving with speed v...Ch. 8 - Two wires are tied to the 2.0 kg sphere shown in...Ch. 8 - Two wires are tied to the 300 g sphere shown in...Ch. 8 - A conical pendulum is formed by attaching a ball...Ch. 8 - The 10 mg bead in FIGURE P8.48 is free to slide on...Ch. 8 - In an old-fashioned amusement park ride,...Ch. 8 - The ultracentrifuge is an important tool for...Ch. 8 - In an amusement park ride called The Roundup,...Ch. 8 - 52. Suppose you swing a ball of mass m in a...Ch. 8 - A 30 g ball rolls around a 40-cm-diameter L-shaped...Ch. 8 - FIGURE P8.54 shows a small block of mass m sliding...Ch. 8 - The physics of circular motion sets an upper limit...Ch. 8 - A 100 g ball on a 60-cm-long string is swung in a...Ch. 8 - A 60 g ball is tied to the end of a 50-cm-long...Ch. 8 - Elm Street has a pronounced dip at the bottom of a...Ch. 8 - 59. A 100 g ball on a 60-cm-long string is swung...Ch. 8 - Scientists design a new particle accelerator in...Ch. 8 - 61. A 1500 kg car starts from rest and drives...Ch. 8 - Prob. 62EAPCh. 8 - 63. A 2.0 kg ball swings in a vertical circle on...Ch. 8 - In Problems 64 and 65 you are given the equation...Ch. 8 - In Problems 64 and 65 you are given the equation...Ch. 8 - Sam (75 kg) takes off up a 50-m-high, 10°...Ch. 8 - In the absence of air resistance, a projectile...Ch. 8 - The father of Example 8.2 stands at the summit of...Ch. 8 - A small bead slides around a horizontal circle at...Ch. 8 - A 500 g steel block rotates on a steel table while...Ch. 8 - If a vertical cylinder of water (or any other...
Additional Science Textbook Solutions
Find more solutions based on key concepts
7. Both Tim and Jan (problem 6) have a widow’s peak (see Module 9.8), but Mike has a straight hairline. What ar...
Campbell Biology: Concepts & Connections (9th Edition)
What global policy changes and what individual choices can help us sustain the planet that sustains us?
Biology: Life on Earth with Physiology (11th Edition)
Acetobacter is necessary for only one of the steps of vitamin C manufacture. The easiest way to accomplish this...
Microbiology: An Introduction
WHAT IF? Is allopatric speciation more likely to occur on an island close to a mainland or on a more isolated i...
Campbell Biology in Focus (2nd Edition)
Identify each of the following reproductive barriers as prezygotic or postzygotic. a. One lilac species lives o...
Campbell Essential Biology with Physiology (5th Edition)
8. A human maintaining a vegan diet (containing no animal products) would be a:
a. producer
b. primary consume...
Human Biology: Concepts and Current Issues (8th 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
- A boy takes a 1.5-kg rock and ties it to the end of a 0.80-m-long, massless, uniform rope. He then swings the rock in a vertical circle. If the speed of the rock at the bottom of the swing is 5.0 m/s, what is the tension in the rope? QUESTION 8 a. 52 N Ob.72 N OC. 57 N d. 67 N e. 62 Narrow_forwardE8. A Ferris wheel at a carnival has a radius of 10 m and turns so that the speed of the riders is 8 m/s. a. What is the magnitude of the centripetal acceleration of the riders?b. What is the magnitude of the net force required to produce this centripetal acceleration for a rider with a mass of 60 kg?arrow_forwardA 1-kg particle is attached to the end of a rope. It rotates in a vertical circle of radius 1 m. When the particle is at the lowest point (bottom) of the circle, its speed is 10 m/s. The tension in the rope at this point is: A. 109.8 N B. 45.7 N C. 12.5 N D. 90.2 N E. Zero O A B D O Earrow_forward
- A. A 1800 kg car's tires have a coefficient of friction equal to 0.25 on wet asphalt. What is the fastest that this car can drive along a flat turn with a radius of 200 m without slipping? B. How would this speed change if the car had a mass of 3600 kg instead? C. How would this speed change if the road were slanted? Would the possible speed be higher or lower?arrow_forward12. A 0.20 kg block on a 0.50-m-long string swings in a circle on a horizontal, frictionless table at 75 rpm. A. What is the speed of the block? B. What is the tension in the string?arrow_forwardA child ties a 0.3 kg stone to one end of a string. Holding the other end, the child whirls the stone in a vertical circle of radius 0.9 m. a. At the top of the circle, the speed of the stone is 8 m/s. What is the tension in the string? Draw the free body diagram. b. At the bottom of the circle, the speed of the stone is 9 m/s. What is the tension in the string? Draw the free body diagram. c. The string can withstand a maximum tension of 40 N before it breaks. The child whirls the stone faster and faster. At what point on the circle does the string break? Show this point on a circle, then draw the trajectory of the stone after breaking. Make sure you clearly show the direction of the stone immediately after the string breaks. d. What is the speed of the stone as the string breaks?arrow_forward
- A 4.0 kg car is traveling around a vertical loop with a radius of 2 m. What is the normal force from the surface of the track when the car is at its highest point if it is moving with a speed of 5 m/s? A.40 N B.90 N C.50 N D.10 Narrow_forwardE6. A car with a mass of 1300 kg is moving around a curve with a radius of 35 m at a constant speed of 15 m/s (about 35 MPH). a. What is the centripetal acceleration of the car? b. What is the magnitude of the force required to produce this centripetal acceleration?arrow_forwardThe mass of Pluto is 1.31 x 1022 kg, and its radius is 2.37 x 106 m. A. What would the weight (in Newtons) of a 60 kg person be if they were on Pluto? B. What is the acceleration from Pluto's gravity on its surface? C. Where would a 100 kg person have to be in order to have the same weight as the 70 kg as in part A?arrow_forward
- Please write. A lion with a mass of 190 kg is chasing a gazelle with a mass of 15 kg. The distance between the lion and the gazelle is 2 meters.a. How much gravitational force does the lion exert on the gazelle?b. How much gravitational force does the gazelle exert on the lion?arrow_forwardA racecar is driven on a horizontal circular track at a constant speed of 20.0 m/s. The radius of the track is 100.0 meters and the mass of the car is 800.0 kg. a. Does the racecar accelerate and if it does in what direction is the acceleration? EXPLAIN! b. What is the centripetal force on the racecar? c. What is the value of the static frictional force between the tires and the track? d. Explain what (and why) the driver of the racecar should do if it started to rain in order to keep driving in a circle. Make sure to explain what happens to the frictional force when it begins to rain and make sure to explain how the driver’s action changes the centripetal force on the racecar.arrow_forwardPlanet Z is 10,000 km in diameter. The free-fall acceleration on Planet Z is 8.0 m/s2.a. What is the mass of Planet Z?b. What is the free-fall acceleration 10,000 km above Planet Z’s north pole?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
What is Torque? | Physics | Extraclass.com; Author: Extraclass Official;https://www.youtube.com/watch?v=zXxrAJld9mo;License: Standard YouTube License, CC-BY