College Physics: A Strategic Approach (4th Edition)
4th Edition
ISBN: 9780134609034
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 9, Problem 23P
A 10,000 kg railroad car is rolling at 2.00 m/s when a 4000 kg load of gravel is suddenly dropped in. What is the car’s speed just after the gravel is loaded?
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule01:51
Students have asked these similar questions
A 1500 kg car traveling at 12 m/s suddenly runs out of gas while approaching the valley shown in the figure. The alert driver immediately puts the car in neutral so that it will roll. What will be the car’s speed as it coasts into the gas station on the other side of the valley?
A 663 kg hammer of a pile driver is lifted 3.3 meters above a piling head. If the hammer is released, what will be its velocity (in m/s) at the instant it strikes the piling?
A 120-g toy car is propelled by a compressed spring that starts it moving. The car follows the curved track in the figure.
What is the final speed in m/s and it coasts up to the frictionless slope, gaining 0.085 meters in altitude.
Chapter 9 Solutions
College Physics: A Strategic Approach (4th Edition)
Ch. 9 - Prob. 1CQCh. 9 - Prob. 2CQCh. 9 - Two pucks, of mass m and 4m, lie on a frictionless...Ch. 9 - Prob. 4CQCh. 9 - Prob. 5CQCh. 9 - Prob. 6CQCh. 9 - Prob. 7CQCh. 9 - Two students stand at rest, facing each other on...Ch. 9 - A 2 kg cart rolling to the right at 3 m/s runs...Ch. 9 - Automobiles are designed with crumple zones...
Ch. 9 - You probably know that it feels better to catch a...Ch. 9 - In the early days of rocketry, some people claimed...Ch. 9 - Two ice skaters, Megan and Jason, push off from...Ch. 9 - Suppose a rubber ball and a steel ball collide....Ch. 9 - While standing still on a basketball court, you...Ch. 9 - To win a prize at the county fair, youre trying to...Ch. 9 - Monica stands at the edge of a circular platform...Ch. 9 - If the earth warms significantly, the polar ice...Ch. 9 - Prob. 21CQCh. 9 - Prob. 23MCQCh. 9 - Curling is a sport played with 20 kg stones that...Ch. 9 - Prob. 25MCQCh. 9 - Prob. 26MCQCh. 9 - Prob. 27MCQCh. 9 - A 4.0-m-diameter playground merry-go-round, with a...Ch. 9 - A disk rotates freely on a vertical axis with an...Ch. 9 - At what speed do a bicycle and its rider, with a...Ch. 9 - Prob. 2PCh. 9 - A 57 g tennis ball is served at 45 m/s. If the...Ch. 9 - Prob. 4PCh. 9 - A student throws a 120 g snowball at 7.5 m/s at...Ch. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Use the impulse-momentum theorem to find how long...Ch. 9 - Prob. 10PCh. 9 - Prob. 11PCh. 9 - Prob. 12PCh. 9 - A child is sliding on a sled at 1.5 m/s to the...Ch. 9 - Prob. 14PCh. 9 - As part of a safety investigation, two 1400 kg...Ch. 9 - In a Little League baseball game, the 145 g ball...Ch. 9 - Prob. 18PCh. 9 - A small, 100 g cart is moving at 1.20 m/s on a...Ch. 9 - Prob. 20PCh. 9 - A 2.7 kg block of wood sits on a frictionless...Ch. 9 - Prob. 22PCh. 9 - A 10,000 kg railroad car is rolling at 2.00 m/s...Ch. 9 - Prob. 24PCh. 9 - A 55 kg hunter, standing on frictionless ice,...Ch. 9 - Prob. 26PCh. 9 - Prob. 27PCh. 9 - Prob. 28PCh. 9 - A 71 kg baseball player jumps straight up to catch...Ch. 9 - Prob. 30PCh. 9 - A kid at the junior high cafeteria wants to propel...Ch. 9 - The parking brake on a 2000 kg Cadillac has...Ch. 9 - A 2.0 kg block slides along a frictionless surface...Ch. 9 - Erica (36 kg) and Danny (47 kg) are bouncing on a...Ch. 9 - A 20 g ball of clay traveling east at 3.0 m/s...Ch. 9 - Prob. 37PCh. 9 - A 20 g ball of clay traveling east at 2.0 m/s...Ch. 9 - A firecracker in a coconut blows the coconut into...Ch. 9 - Prob. 40PCh. 9 - Prob. 41PCh. 9 - Divers change their body position in midair while...Ch. 9 - Prob. 43PCh. 9 - What is the angular momentum of the moon around...Ch. 9 - Prob. 46GPCh. 9 - Prob. 47GPCh. 9 - Prob. 48GPCh. 9 - Prob. 49GPCh. 9 - Prob. 50GPCh. 9 - Prob. 51GPCh. 9 - A 140 g baseball is moving horizontally to the...Ch. 9 - A tennis player swings her 1000 g racket with a...Ch. 9 - A 20 g ball of clay is thrown horizontally at 30...Ch. 9 - Dan is gliding on his skateboard at 4.0 m/s. He...Ch. 9 - Ethan, whose mass is 80 kg, stands at one end of a...Ch. 9 - Three identical train cars, coupled together, are...Ch. 9 - A 110 kg linebacker running at 2.0 m/s and an 82...Ch. 9 - Most geologists believe that the dinosaurs became...Ch. 9 - Two ice skaters, with masses of 75 kg and 55 kg,...Ch. 9 - Prob. 62GPCh. 9 - One billiard ball is shot east at 2.00 m/s. A...Ch. 9 - A 10 g bullet is fired into a 10 kg wood block...Ch. 9 - A typical raindrop is much more massive than a...Ch. 9 - A 15 g bullet is fired at 610 m/s into a 4.0 kg...Ch. 9 - Prob. 67GPCh. 9 - Two 500 g blocks of wood are 2.0 m apart on a...Ch. 9 - A spaceship of mass 2.0 106 kg is cruising at a...Ch. 9 - At the county fair, Chris throws a 0.15 kg...Ch. 9 - Prob. 73GPCh. 9 - The carbon isotope 14C is used for carbon dating...Ch. 9 - Prob. 75GPCh. 9 - A 2.0 kg, 20-cm-diameter turntable rotates at 100...Ch. 9 - Prob. 77GPCh. 9 - A 3.0-m-diameter merry-go-round with a mass of 250...Ch. 9 - Disk A, with a mass of 2.0 kg and a radius of 40...Ch. 9 - Consider a golf club hitting a golf ball. To a...Ch. 9 - Consider a golf club hitting a golf ball. To a...Ch. 9 - Consider a golf club hitting a golf ball. To a...Ch. 9 - Consider a golf club hitting a golf ball. To a...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Which of the two planets (Esus or Sulis) do you think will move around the central star in the least amount of ...
Lecture- Tutorials for Introductory Astronomy
What two quantities affect air resistance?
Conceptual Integrated Science
Write each number in decimal form.
41. 4.5 × 1012
Applied Physics (11th Edition)
Estimate the wavelength for 1.9-GHz cell phone reception.
Physics for Scientists and Engineers with Modern Physics
The particle is positively charged or negatively charged.
Physics (5th Edition)
the average temperature of the universe today is 2.73
Conceptual Physical Science (6th 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
- Three identical train cars, coupled together, are rolling east at 2.0 m/s. A fourth car traveling east at 4.0 m/s catches up with the three and couples to make a four-car train. A moment later, the train cars hit a fifth car that was at rest on the tracks, and it couples to make a five-car train. What is the speed of the fivecar train?arrow_forwardA 10,000kg coal car on the Great Northern Railroad coasts under a coal storage bin at a speed of 2.0 m/s. As it goes under the bin, 1000kg of coal is dropped into the car. What is the final speed of the loaded car?arrow_forward6. Your friend (mass 65.0 kg) is standing on the ice in the middle of a frozen pond. There is very little friction between her feet and the ice, so she is unable to walk. Fortunately, a light rope is tied around her waist and you stand on the bank holding the other end. You pull the rope for 3.00 s and accelerate your friend from rest to a speed of 6.00 m/s while you remain at rest. What is the average power supplied by the force you applied?arrow_forward
- A child sleds down a hill and collides at 5.6 m/s into a stationary sled that is identical to his. The child is launched forward at the same speed, leaving behind the two sleds that lock together and slide forward more slowly. What is the speed of the two sleds after this collision?arrow_forwardA 0.2 kg softball is thrown straight up with an initial speed of 9 m/s. How high in meters does it go? Round to two significant figures.arrow_forwardA hockey puck is hit by a stick and slides off at an initial speed of 0.5 m/s. Assuming that the ice is frictionless, what is the speed of the puck after 1s?arrow_forward
- A 8.00-kg block of ice is released from rest at the top of a 1.60-m long frictionless ramp, slides downhill, reaching a speed of 3.25 m/s at the bottom. What is the angle between the ramp and the horizontal?arrow_forwardA 60.0 kg skier with an initial speed of 15 m/s coasts up a 2.50 m high rise as shown in the figure. a. Find her final speed right at the top, in meters per second, given that the coefficient of friction between her skis and the snow is 0.36.arrow_forwarda boy is flying a paper kite which is at a height of 120ft. the wind is carrying the paper kite horizontally away from the boy at a speed of 10ft/s. how fast must the paper kite string be let out when the string is 150 ft long?arrow_forward
- A 7100-kilogram train car runs at a constant 16.0 m/s on a flat, frictionless track. Initially at rest, a 2650-kg load is put onto the vehicle. What will be the new top speed of the car?arrow_forwardA 2.5 kg ball strikes a wall with the velocity of 8.5 m/s to the left the ball bounces off with a velocity of 7.5 m/s to the right. if the ball is in contact with the wall for 0.2s, what is the force exerted on the ball by the wall.arrow_forwardCHAPTER 11 Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, throwing up so much dust that the sun was blocked out for a period of many months. Suppose an asteroid with a diameter of 2.0 km and a mass of 1.0 * 10¹3 kg hits the earth (6.0 * 1024 kg) with an impact speed of 4.0 * 10 m/s. a. What is the earth's recoil speed after such a collision? (Use a reference frame in which the earth was initially at rest.) b. What percentage is this of the earth's speed around the sun? The earth orbits the sun at a distance of 1.5 * 10¹¹ m.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Gravitational Force (Physics Animation); Author: EarthPen;https://www.youtube.com/watch?v=pxp1Z91S5uQ;License: Standard YouTube License, CC-BY