Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)
3rd Edition
ISBN: 9780321908865
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 9, Problem 7P
a. A 2.0 kg object is moving to the right with a speed of 1.0 m/s when it experiences the force shown in Figure P9.7a. What are the object’s speed and direction after the force ends?
Figure P9.7
b. Answer this question for the force shown in Figure P9.7 b.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A 1980 kg truck traveling north at 37 km/h turns east and accelerates to 53 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum?
A railroad car of mass 2.5 x 104 kg is moving at a speed of 4.00 m/s. It collides and couples with three other coupled railroad cars, each with the same mass as the single car, moving in the opposite direction at 2.00 m/s. (a) What is the speed of the four coupled cars after the collision? (b) How much energy is lost in the collision?
A 2100 kg truck traveling north at 41 km/h turns east and accelerates to 51 km/h. (a) What is the change in the truck’s kinetic energy? What are the (b) magnitude and (c) direction of the change in its momentum?
Chapter 9 Solutions
Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)
Ch. 9 - Rank in order, from largest to smallest, the...Ch. 9 - Starting from rest, object 1 is subject to a 12 N...Ch. 9 - A 0.2 kg plastic cart and a 20 kg lead cart can...Ch. 9 - Two pucks, of mass m and 4m, lie on a frictionless...Ch. 9 - Prob. 5CQCh. 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 - Rank in order, from largest to smallest, the...Ch. 9 - Monica stands at the edge of a circular platform...Ch. 9 - If the earth warms significantly, the polar ice...Ch. 9 - The disks shown in Figure Qg.181 have equal mass....Ch. 9 - Curling is a sport played with 20 kg stones that...Ch. 9 - Two balls are hung from cords. The first ball, of...Ch. 9 - Figure Q9.21 shows two blocks sliding on a...Ch. 9 - Two friends are sitting in a stationary canoe. At...Ch. 9 - Two blocks, with masses m1, = 2.5 kg and m2 = 14...Ch. 9 - A small puck is sliding to the right with...Ch. 9 - A red ball, initially at rest, is simultaneously...Ch. 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 - A 57 g tennis ball is served at 45 m/s. If the...Ch. 9 - A student throws a 120 g snowball at 7.5 m/s at...Ch. 9 - In Figure P9.4, what value of Fmax gives an...Ch. 9 - A sled and rider, gliding over horizontal,...Ch. 9 - Use the impulse-momentum theorem to find how long...Ch. 9 - a. A 2.0 kg object is moving to the right with a...Ch. 9 - A 60 g tennis ball with an initial speed of 32 m/s...Ch. 9 - A child is sliding on a sled at 1.5 m/s to the...Ch. 9 - An ice hockey puck slides along the ice at 12 m/s....Ch. 9 - As part of a safety investigation, two 1400 kg...Ch. 9 - In a Little League baseball game, the 145 g ball...Ch. 9 - A small, 100 g cart is moving at 1.20 m/s on a...Ch. 9 - A man standing on very slick ice fires a rifle...Ch. 9 - A 2.7 kg block of wood sits on a frictionless...Ch. 9 - A strong man is compressing a lightweight spring...Ch. 9 - A 10,000 kg railroad car is rolling at 2.00 m/s...Ch. 9 - A 5000 kg t rain car, with its top open, is...Ch. 9 - A 55 kg hunter, standing on frictionless ice,...Ch. 9 - A 9.5 kg dog takes a nap in a canoe and wakes up...Ch. 9 - Prob. 21PCh. 9 - A 71 kg baseball player jumps straight up to catch...Ch. 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 - At a wild-west show, a marksman fires a bullet at...Ch. 9 - A 20 g ball of clay traveling east at 3.0 m/s...Ch. 9 - Two particles collide and bounce apart. Figure...Ch. 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 - What is the angular momentum of the moon around...Ch. 9 - A little girl is going on the merry-go-round for...Ch. 9 - What is the angular momentum about the axle of the...Ch. 9 - What is the angular momentum about the axle of the...Ch. 9 - Divers change their body position in midair while...Ch. 9 - Prob. 37PCh. 9 - What is the impulse on a 3.0 kg particle that...Ch. 9 - A 600 g air-track glider collides with a spring at...Ch. 9 - Far in space, where gravity is negligible, a 425...Ch. 9 - A 200 g ball is dropped from a height of 2.0 m,...Ch. 9 - A 200 g ball is dropped from a height of 2.0 m and...Ch. 9 - Figure P9.43 is a graph of the force exerted by...Ch. 9 - A sled slides along a horizontal surface for which...Ch. 9 - A 140 g baseball is moving horizontally to the...Ch. 9 - Squids rely on jet propulsion, a versatile...Ch. 9 - The flowers of the bunchberry plant open with...Ch. 9 - a. With what speed are pollen grains ejected from...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 - James and Sarah stand on a stationary cart with...Ch. 9 - Ethan, whose mass is 80 kg, stands at one end of a...Ch. 9 - A small cart rolls freely along the floor. As it...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. 59GPCh. 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 - Two 500 g blocks of wood are 2.0 m apart on a...Ch. 9 - A 495 kg cannon fires a 10.0 kg cannonball with a...Ch. 9 - Laura, whose mass is 35 kg, jumps horizontally off...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 - Figure P9.70 shows a collision between three balls...Ch. 9 - The carbon isotope 14C is used for carbon dating...Ch. 9 - A 1.0-m-long massless rod is pivoted at one end...Ch. 9 - A 200 g puck revolves in a circle on a...Ch. 9 - Figure P9.74 shows a 100 g puck revolving at 100...Ch. 9 - A 2.0 kg, 20-cm-diameter turntable rotates at 100...Ch. 9 - Joey, from Example 9.10, stands at rest at the...Ch. 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
(II) (a) Show that the average rate with which energy is transported along a cord by a mechanical wave of frequ...
Physics for Scientists and Engineers with Modern Physics
Description of Motion: Move toward the detector with decreasing speed, then just as you have come to rest, move...
Tutorials in Introductory Physics
The event chain about the destruction of ozone molecules in the ozone layer by CFC molecules.
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
The speed of the person sitting on the chair relative to the chair and relative to Earth.
Conceptual Physics (12th Edition)
26. The earth’s radius is about 4000 miles. Kampala, the capital of Uganda, and Singapore are both nearly on t...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Choose the best answer to each of the following. Explain your reasoning. When we see Saturn going through a per...
The Cosmic Perspective Fundamentals (2nd 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
- In Figure P11.51, a cue ball is shot toward the eight-ball on a pool table. The cue ball is shot at the eight-ball with a speed of 8.00 m/s in a direction 30.0 from the y axis. Both balls have the same mass of 0.170 kg. After the balls undergo an elastic collision, the eight-ball travels in the negative x direction into the side pocket. What is the velocity of the cue ball after this collision? FIGURE P11.51arrow_forwardAn object of mass m = 4.00 kg that is moving with a speed of 10.0 m/s collides head-on with another object, and the collision lasts 1.50 s. A graph showing the magnitude of the force during the collision versus time is shown in Figure P11.59, where the force is exerted in the direction opposite the initial velocity. Find the speed of the 4.00-kg mass after collision. FIGURE P11.59arrow_forwardA tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 50.0 m/s and returns the shot with the ball traveling horizontally at 40.0 m/s in the opposite direction. (a) What is the impulse delivered to the ball by the tennis racquet? (b) What work does the racquet do on the ball?arrow_forward
- A cart filled with sand rolls at a speed of 1.0 m/s along a horizontal path without friction. A ball of mass m = 2.0 kg is thrown with a horizontal velocity of 8.0 m/s toward the cart as shown in Figure P11.79. The ball gets stuck in the sand. What is the velocity of the cart after the ball strikes it? The mass of the cart is 15 kg. FIGURE P11.79 Problems 79 and 80.arrow_forwardPam, wearing a rocket pack, stands on frictionless ice. She has amass of 45 kg. The rocket supplies a constant force for 22 m and Pamacquires a speed of 62 m/s. a). What is the magnitude of the force? b)What is Pam's final kinetic energy?arrow_forwardA 50 g ball of clay traveling at speed v0 hits and sticks to a 1.0 kg brick sitting at rest on a frictionless surface. a. What is the speed of the brick after the collision?b. What percentage of mechanical energy is lost in this collision?arrow_forward
- A Military aircraft that has a mass of 1.21 * 10^3 kg accelerates at 316 m/s for 15 seconds from initial speed of 2784 m/s a) How fast will be the military aircraft be travelling after 15 seconds? b) How much KE has the rocket gained?arrow_forwardA 2.64 -g bullet moving at 280 m/s enters and stops in an initially stationary 2.10−kg wooden block on a horizontal frictionless surface. (a) What's the speed of the bullet/block combination?(b) What fraction of the bullet's kinetic energy was lost in this perfectly inelastic collision? (c) How much work was done in stopping the bullet? (d) If the bullet penetrated 5.00 cm into the wood, what was the average stopping force?arrow_forwardA 28000-kg open railroad car, initially coasting at 0.725 m/s with negligible friction, passes under a hopper that dumps 115000 kg of scrap metal into it. a)What is the final speed, in meters per second, of the loaded freight car? b)How much kinetic energy is lost, in joules, when the freight car receives this scrap metal? Ignore the free-fall kinetic energy of the scrap metal.arrow_forward
- Two figure skaters, one weighing 625 N and the other 725 N, push off against each other on very smooth ice. a)If the heavier skater travels at 1.50 m/s, how fast will the lighter one travel? b)How much kinetic energy is "created" during the skaters' maneuver?arrow_forwardTwo perfectly elastic balls, weighing 6 lbs and 4 lbs, approaching each other with a speed of 20 ft/s and 35 ft/s, respectively. a.) What will be their speeds after the collision? b.) What is the change in total kinetic energy after collision?arrow_forwardA body of mass 7 Kg and speed 7 m/s collides with another body of mass 5 Kg and speed 5 m/s. Both of the masses move in the same direction before the collision. After the collision the first mass continues to move in the original direction with speed 6 m/s. (a) What is the speed of the other body? (b) What is change in kinetic energy? (c) Is this an elastic collision?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
Impulse Derivation and Demonstration; Author: Flipping Physics;https://www.youtube.com/watch?v=9rwkTnTOB0s;License: Standard YouTube License, CC-BY