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
Textbook Question
Chapter 5, Problem 18P
a. How much force does an 80 kg astronaut exert on his chair while sitting at rest on the launch pad?
b. How much force does the astronaut exert on his chair while accelerating straight up at 10 m/s2
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
7. An engine is used to pull a train of two cars out of a mine. The floor of the mine
slopes upward at an angle of 30°. Each car has a mass of 104 kg and normally travels
without friction on the tracks. The engine can exert a maximum force of 1.5 · 105 N
on car A.
a. The engine first accelerates the cars from rest by exerting its maximum force.
What is the acceleration of the cars ?
b. Once the train has reached a reasonable speed, the engineer throttles back so
that they continue at a constant speed. Now what force does the engine exert on
car A?
c. What is the tension in the massless, straight chain connecting cars A and B while
they are travelling at a constant speed?
d. If the engineer again throttles back so that the force exerted by the engine on
car A decreases at the constant rate of 3N per second, how long before the train
stops moving up the track? Assume the original speed was 3 meters per second.
A
В
e=30°
a. How much force does an 80 kg astronaut exert on his chair while sitting at rest on the launch pad?b. How much force does the astronaut exert on his chair while accelerating straight up at 10 m/s2?
a.
How far does she travel in 8 s?
3.)
The driver of mass 80 kg is strapped to the seat of his Ferrari. If she comes to a stop
after traveling at 30 m/s in 2 s, determine the force on the driver from the seatbelt.
Chapter 5 Solutions
College Physics: A Strategic Approach (4th Edition)
Ch. 5 - An object is subject to two forces that do not...Ch. 5 - Are the objects described here in static...Ch. 5 - Prob. 3CQCh. 5 - Prob. 4CQCh. 5 - An astronaut takes his bathroom scale to the moon...Ch. 5 - A light block of mass m and a heavy block of mass...Ch. 5 - a. Can the normal force on an object be directed...Ch. 5 - A ball is thrown straight up. Taking the drag...Ch. 5 - You are going sledding with your friends, sliding...Ch. 5 - Suppose you are holding a box in front of you and...
Ch. 5 - You are walking up an icy slope. Suddenly your...Ch. 5 - Three objects move through the air as shown in...Ch. 5 - Prob. 13CQCh. 5 - Raindrops can fall at different speeds; some fall...Ch. 5 - An airplane moves through the air at a constant...Ch. 5 - Is it possible for an object to travel in air...Ch. 5 - For Questions 17 through 20, determine the tension...Ch. 5 - For Questions 17 through 20, determine the tension...Ch. 5 - For Questions 17 through 20, determine the tension...Ch. 5 - For Questions 17 through 20, determine the tension...Ch. 5 - In Figure Q5.21, block 2 is moving to the right....Ch. 5 - The wood block in Figure Q5.22 is at rest on a...Ch. 5 - Prob. 23MCQCh. 5 - Prob. 24MCQCh. 5 - Prob. 25MCQCh. 5 - While standing in a low tunnel, you raise your...Ch. 5 - A 5.0 kg dog sits on the floor of an elevator that...Ch. 5 - A 3.0 kg puck slides due east on a horizontal...Ch. 5 - Eric has a mass of 60 kg. He is standing on a...Ch. 5 - Prob. 30MCQCh. 5 - A football player at practice pushes a 60 kg...Ch. 5 - Two football players are pushing a 60 kg blocking...Ch. 5 - Land Rover ads used to claim that their vehicles...Ch. 5 - A truck is traveling at 30 m/s on a slippery road....Ch. 5 - The three ropes in Figure P5.1 are tied to a...Ch. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - A construction crew would like to support a 1000...Ch. 5 - When you bend your knee, the quadriceps muscle is...Ch. 5 - An early submersible craft for deep-sea...Ch. 5 - Prob. 7PCh. 5 - A 65 kg student is walking on a slackline, a...Ch. 5 - Prob. 9PCh. 5 - The forces in Figure P5.10 are acting on a 2.0 kg...Ch. 5 - The forces in Figure P5.11 are acting on a 2.0 kg...Ch. 5 - A horizontal rope is tied to a 50 kg box on...Ch. 5 - Prob. 13PCh. 5 - In a head-on collision, a car stops in 0.10 s from...Ch. 5 - An astronauts weight on earth is 800 N. What is...Ch. 5 - A woman has a mass of 55.0 kg. a. What is her...Ch. 5 - Prob. 17PCh. 5 - a. How much force does an 80 kg astronaut exert on...Ch. 5 - It takes the elevator in a skyscraper 4.0 s to...Ch. 5 - Riders on the Power Tower are launched skyward...Ch. 5 - Zach, whose mass is 80 kg, is in an elevator...Ch. 5 - Prob. 22PCh. 5 - Figure P5.23 shows the velocity graph of a 75 kg...Ch. 5 - Prob. 24PCh. 5 - A 23 kg child goes down a straight slide inclined...Ch. 5 - Prob. 26PCh. 5 - Two workers are sliding a 300 kg crate across the...Ch. 5 - A 4000 kg truck is parked on a 7.0 slope. How big...Ch. 5 - A 1000 kg car traveling at a speed of 40 m/s skids...Ch. 5 - It is friction that provides the force for a car...Ch. 5 - The rolling resistance for steel on steel is quite...Ch. 5 - Prob. 34PCh. 5 - Prob. 35PCh. 5 - Prob. 36PCh. 5 - Prob. 38PCh. 5 - Prob. 40PCh. 5 - A 1000 kg car pushes a 2000 kg truck that has a...Ch. 5 - A 2200 kg truck has put its front bumper against...Ch. 5 - Blocks with masses of 1.0 kg, 2.0 kg, and 3.0 kg...Ch. 5 - Prob. 44PCh. 5 - Prob. 45PCh. 5 - Prob. 46PCh. 5 - Each of 100 identical blocks sitting on a...Ch. 5 - A 500 kg piano is being lowered into position by a...Ch. 5 - Dana has a sports medal suspended by a long ribbon...Ch. 5 - Prob. 51GPCh. 5 - Your forehead can withstand a force of about 6.0...Ch. 5 - A 50 kg box hangs from a rope. What is the tension...Ch. 5 - Prob. 54GPCh. 5 - A 50 kg box hangs from a rope. What is the tension...Ch. 5 - A fisherman has caught a very large, 5.0 kg fish...Ch. 5 - Riders on the Tower of Doom, an amusement park...Ch. 5 - Prob. 58GPCh. 5 - Seat belts and air bags save lives by reducing the...Ch. 5 - Prob. 60GPCh. 5 - A 20,000 kg rocket has a rocket motor that...Ch. 5 - Youve always wondered about the acceleration of...Ch. 5 - Prob. 63GPCh. 5 - An impala is an African antelope capable of a...Ch. 5 - Josh starts his sled at the top of a 3.0-m-high...Ch. 5 - Prob. 67GPCh. 5 - Prob. 68GPCh. 5 - Prob. 69GPCh. 5 - Prob. 70GPCh. 5 - Prob. 71GPCh. 5 - Prob. 72GPCh. 5 - Prob. 73GPCh. 5 - Its possible for a determined group of people to...Ch. 5 - Prob. 75GPCh. 5 - Prob. 77GPCh. 5 - Prob. 79GPCh. 5 - Prob. 80GPCh. 5 - Prob. 82GPCh. 5 - Prob. 83GPCh. 5 - Prob. 84GPCh. 5 - MCAT-Style Passage Problems Sliding on the Ice In...Ch. 5 - MCAT-Style Passage Problems Sliding on the Ice In...Ch. 5 - MCAT-Style Passage Problems Sliding on the Ice In...Ch. 5 - MCAT-Style Passage Problems Sliding on the Ice In...
Additional Science Textbook Solutions
Find more solutions based on key concepts
In paddling a canoe, you push water backward with your paddle. What force actually propels the canoe forward?
Essential University Physics (3rd Edition)
While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s2 for 12.0 s. (a) Draw a sketch of t...
College Physics
Your alpine rescue team is using a slingshot to send an emergency medical packet to climbers stranded on a ledg...
Essential University Physics: Volume 1 (3rd Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
Which value, apparent magnitude, or absolute magnitude, do you think:
tells us how bright an object will appear...
Lecture- Tutorials for Introductory Astronomy
85. A friend says that the secondary bow of a rainbow, such as that shown on the cover of this text and in Figu...
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
- A car of mass 875 kg is traveling 30.0 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.60 s in the positive x-direction before coming to rest. (a) What is the cars acceleration? (b) What magnitude force acted on the car during this time? (c) How far did the car travel?arrow_forward(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater. T or w? (b) When the elevator is moving at a constant velocity upward, which is greater. T or w2 (c) When the elevator is moving upward, but the acceleration is downward, which is greater. T or w? (d) Let the elevator have a mass of 1500 kg and an upward acceleration of 2.5 m/s2. Find T. Is your answer consistent with the answer to part (a)? (e) The elevator of part (d) now moves with a constant upward velocity of 10 m/s. Find T. Is your answer consistent with your answer to part (b)? (f) Having initially moved upward with a constant velocity, the elevator begins to accelerate downward at 1.50 m/s2. Find T Is your answer consistent with your answer to part (c)?arrow_forwardA 3.0 kg puck slides due east on a horizontal frictionless surface at a constant speed of 4.5 m/s. Then a force of magnitude 6.0 N, directed due north, is applied for 1.5 s. Afterward,a. What is the northward component of the puck’s velocity?A. 0.50 m/s B. 2.0 m/s C. 3.0 m/sD. 4.0 m/s E. 4.5 m/sb. What is the speed of the puck?A. 4.9 m/s B. 5.4 m/s C. 6.2 m/sD. 7.5 m/s E. 11 m/sarrow_forward
- e 61. At the local grocery store, you push a 14.5-kg shopping cart. You stop for a moment to add a bag of dog food to your cart. With a force of 12.0 N, you now accelerate the cart from rest through a distance of 2.29 m in 3.00 s. What was the mass of the dog food?arrow_forwardC. a. 1. Alan (m = 50 kg) and Diego (m = 40 kg) are standing on a frictionless ice rink, facing each other, when Alan pushes Diego. Diego moves with an acceleration of 1 m/s². What is the magnitude of Alan's acceleration? a. .8 m/s² b. 1.0 m/s² c. 1.25 m/s² d. Cannot be determined 2. How much horizontal force must a girl apply to a 50 kg cabinet to accelerate it at .4 m/s² along a horizontal surface if there is a friction force of 70 N? b. 50 N e. 90 N 3. Students design an experiment to determine the relationship between mass and acceleration where a cannon fires varying masses. Motion sensors are used to measure the velocity of the cannon ball while it is in the cannon. A graph of one of the trials is shown to the right. The mass is then increased for the next trial while keeping everything else the same. What should the velocity vs. time graph look like for this next trial? The second trial is the dashed line. 120 100 80 60 40 20 0 0 120 100 80 60 40 20 a. 20 N d. 80 N D Velocity…arrow_forwardIf a net horizontal force of 132 N is applied to a person with mass 60 kg who is resting on the edge of a swimming pool, what horizontal acceleration is produced? A A. 7920 m/s^2 (в) в. 29.20 m/s2 C. 2.2 m/s^2 D. D. 22.2 m/s^2 E E. No answerarrow_forward
- A stuntman drives a car of mass 1125 kg east with a speed of 20 m/s. a. If the car accelerates at a rate of –2 m/s 2 , how long will it take the car to go 50 m? b. The stuntman drives the car off an 80 m cliff while going 15 m/s. How long will it take the car to land? c. How far horizontally from the cliff will the car land?arrow_forwardAn electron of mass 9.11 x 10^-31 kg leaves one end of a TV picture tube with zero initial speed and reaches the accelerating grid 1.80 cm away at a speed of 3.00 X 10^6 m/s. What is the net force in newtons? a. 2.28 X 10^-16 N b. 3.28 X 10^-16 N c. 4.28 X 10^-16 N d. 5.28 X 10^-16 Narrow_forwardFigure 41. VA 276-kg glider is being pulled by a 1 950-kg jet along a 2.20 m/s² to horizontal runway with an acceleration of a the right as in Figure P4.41. Find (a) the thrust provided by the jet's engines and (b) the magnitude of the tension in the cable connecting the jet and glider. Figure P4.41arrow_forward
- A 403.280 kg car is traveling down a 25-degree slope. At the instant that the speed is 13 m/s, the driver applied the brakes. What constant force (F), parallel to the road, must be provided by the brakes if the car is to stop in 68.310 meters? CHOICES: A. 9043.234 N B. 2908.952 N C. 8635.722 N D. 1292.535 N E. 5084.885 Narrow_forward2 W S X 3. Four blocks, with masses m₁ = 5.90 kg, m₂ = 5.10 kg, m3 = 8.00 kg, and m4 = 7.50 kg, are pulled on a horizontal frictionless surface by a 35.00 N force that makes a 25° angle (0) with the horizontal (see figure). What is the magnitude of the tension between the m₁ and m₂ blocks? N 3 E D C 888 R F % 5 20 V T ma 6 20 MacBook Air Y m3 B 7 H 109 91100/9/1 30 U N m₂ 8 J m₁ 9 K M 16 ceiló ceiló eciloarrow_forwardA woman has a mass of 55.0 kg.a. What is her weight on earth?b. What are her mass and her weight on the moon, where g = 1.62 m/s2?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Drawing Free-Body Diagrams With Examples; Author: The Physics Classroom;https://www.youtube.com/watch?v=3rZR7FSSidc;License: Standard Youtube License