College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 5, Problem 25MCQ
A 5.0 kg dog sits on the floor of an elevator that is accelerating downward at 1.20 m/s2 a. What is the magnitude of the normal force of the elevator floor on the dog?
A. 34 N
B. 43 N
C. 49 N
D. 55 N
E. 74 N
b. What is the magnitude of the force of the dog on the elevator floor?
A. 4.2 N
B. 49 N
C. 55 N
D. 43 N
E. 74 N
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A 5.0 kg dog sits on the floor of an elevator that is accelerating downward at 1.20 m/s2.a. What is the magnitude of the normal force of the elevator floor on the dog?A. 34 N B. 43 N C. 49 N D. 55 N E. 74 Nb. What is the magnitude of the force of the dog on the elevator floor?A. 4.2 N B. 49 N C. 55 N D. 43 N E. 74 N
While standing in a low tunnel, you raise your arms and push against the ceiling with a force of 100 N. Your mass is 70 kg. a. What force does the ceiling exert on you? A. 10 N B. 100 N C. 690 N D. 790 N E. 980 N b. What force does the floor exert on you? A. 10 N B. 100 N C. 690 N D. 790 N E. 980 N
A crate (100 kg) is in an elevator traveling downwards and slowing down at 6 m/s. Find the normal force exerted on the
%3D
crate by the elevator. Assume g = 10 m/s2.
A. 1600 N
B. 400 N
C. 1000 N
D. 400 N
E. 600 N
Chapter 5 Solutions
College Physics: A Strategic Approach (3rd Edition)
Ch. 5 - An object is subject to two forces that do not...Ch. 5 - Are the objects described here in static...Ch. 5 - What forces are acting on you right now? What net...Ch. 5 - Decide whether each of the following is true or...Ch. 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 - A skydiver is falling at her terminal speed. Right...Ch. 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 - A 2.0 kg ball is suspended by two light strings as...Ch. 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 - The two blocks in Figure Q5.28 are at rest on...Ch. 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 - The three ropes in Figure P5.2 are tied to a...Ch. 5 - A 20 kg loudspeaker is suspended 2.0 m below the...Ch. 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 - The two angled ropes are used to support the crate...Ch. 5 - A 65 kg student is walking on a slackline, a...Ch. 5 - Section 5.2 Dynamics and Newtons Second Law 9. A...Ch. 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 - A crate pushed along the floor with velocity vi...Ch. 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 - A 75 kg passenger is seated in a cage in the Sling...Ch. 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 - A kangaroo carries her 0.51 kg baby in her pouch...Ch. 5 - Figure P5.23 shows the velocity graph of a 75 kg...Ch. 5 - a. A 0.60 kg bullfrog is sitting at rest on a...Ch. 5 - A 23 kg child goes down a straight slide inclined...Ch. 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 - A stubborn 120 kg pig sits down and refuses to...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 - What is the minimum downward force on the box in...Ch. 5 - What is the drag force on a 1.6-m-wide, 1.4-m-high...Ch. 5 - A 22-cm-diameter bowling ball has a terminal speed...Ch. 5 - Running on a treadmill is slightly easier than...Ch. 5 - A 75 kg skydiver can be modeled as a rectangular...Ch. 5 - The air is less dense at higher elevations, so...Ch. 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 - What is the tension in the rope of Figure P5.42...Ch. 5 - A 2.0-m-long, 500 grope pulls a 10 kg block of ice...Ch. 5 - Each of 100 identical blocks sitting on a...Ch. 5 - Two blocks on a frictionless table, A and B, are...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 - Figure P5.49 shows the velocity graph of a 2.0 kg...Ch. 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 - A fisherman has caught a very large, 5.0 kg fish...Ch. 5 - A 50 kg box hangs from a rope. What is the tension...Ch. 5 - Riders on the Tower of Doom, an amusement park...Ch. 5 - Seat belts and air bags save lives by reducing the...Ch. 5 - Elite quarterbacks can throw a football 70 m. To...Ch. 5 - A 20,000 kg rocket has a rocket motor that...Ch. 5 - Youve always wondered about the acceleration of...Ch. 5 - A 23 kg child goes down a straight slide inclined...Ch. 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 - The drag force is an important fact of life for...Ch. 5 - A wood block, after being given a starting push,...Ch. 5 - Researchers often use force plates to measure the...Ch. 5 - A person with compromised pinch strength in his...Ch. 5 - Its possible for a determined group of people to...Ch. 5 - A 1.0 kg wood block is pressed against a vertical...Ch. 5 - Two blocks are at rest on a frictionless incline,...Ch. 5 - Running indoors on a treadmill is slightly easier...Ch. 5 - Two identical 2.0 kg blocks are stacked as shown...Ch. 5 - A wood block is sliding up a wood ramp. If the...Ch. 5 - A 2.7 g Ping-Pong ball has a diameter of 4.0 cm....Ch. 5 - Two blocks are connected by a string as in Figure...Ch. 5 - The ramp in Figure P5.75 is frictionless. If the...Ch. 5 - The 100 kg block in Figure P5.76 takes 6.0 s to...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...Ch. 5 - MCAT-Style Passage Problems Sliding on the Ice In...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Calculate the lattice energy of CaCl2 using a Born-Haber cycle and data from Appendices F and L and Table 7.5. ...
Chemistry & Chemical Reactivity
Plants use the process of photosynthesis to convert the energy in sunlight to chemical energy in the form of su...
Campbell Essential Biology (7th Edition)
Identify each of the following characteristics as belonging to cervical, thoracic, or lumbar vertebrae; the sac...
Human Anatomy & Physiology (2nd Edition)
Dr. Ara B. Dopsis and Dr. C. Ellie Gans are performing genetic crosses on daisy plants. They self-fertilize a b...
Genetic Analysis: An Integrated Approach (3rd Edition)
What is the probability that each of thc following pairs of parents will produce the indicated offspring? (Assu...
Campbell Biology (11th Edition)
Which culture uses NAD+? Use the following choices to answer questions. a. E. coli growing in glucose broth at ...
Microbiology: An Introduction
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
- d. 4.7 m/s e. 3.2 m/s 7. The tension in a string from which a 4.0-kg object is suspended in an elevator is equal to 44 N. What is the acceleration of the elevator? 11 m/s? upward 1.2 m/s? upward a. b. C. 1.2 m/s? downward d. 10 m/s? upward e. 2.4m/s² downward W a hparrow_forward10. How much horizontal force is needed to produce an acceleration of 8 m/sec² on a 75 kg box? A. 600 N B. 500 N C. 400 N D. 200 N 11. g=32.2 ft/sec². How is it expressed in SI? A. 9.81 m/sec² B. 9.86 m/sec² 12. What path does a projectile follow? A. ellipse B. parabola C. 9.08 m/sec² C. part of a circle D. 9.91 m/sec² D. hyperbolaarrow_forward1. A horizontal force of 95.0 N is applied to a 60.0 kg box on a rough, level surface. If the crate is accelerated at 1.20 m/s2, what is the magnitude of the kinetic frictional force on the crate? a. 8 N b. 33 N c. It cannot be determined why we do not have the coefficient of kinetic friction. d. 16 N e. 45 N f. 23 N 2. If a block slides down a frictionless incline, which of the following is true? a. speed increases and acceleration decreases b. speed and acceleration increases c. speed increases and acceleration remain constant d. its velocity increases and its acceleration decreases e. its velocity and acceleration remain constant.arrow_forward
- A 25 kg block is suspended to a piece of string attached to the ceiling. The block is approximately 15 m above the ground. What is the magnitude of the force of tension on the string? a. 25 N b. 375 N c. 2.5 x 102 N d. 3.8 x 102 N e. none of abovearrow_forward#5arrow_forwardA 70.0-kg man is standing on a scale in an elevator that is accelerating upward at a rate of 2.00 m/s2. What will the scale read? a. 686 N b. 900 N c. 980 N d. 726 N e. 826 Narrow_forward
- ic.A 70-kg box is slid along the floor by a 400-N force. The coefficient of friction between the box and the floor is 0.5 when the box is sliding. Find the acceleration of the box. O a. 0.8 m/s2. b. 0.18 m/s2. c. 8 m/s2. O d. 8.1 m/s2. O e. 0.81 m/s2.arrow_forward13. 54-kg box is sitting on the floor of a level railroad car which is moving forward with a speed of 25 m/s and accelerating at a rate of 5.6 m/s2. What is the strength, in Newtons, of the frictional force acting on the box if it does not slide on the floor? O A. 0 O B. 25 N O C. 54 N O D. 248 N O E. 255 N O F. 302 N O G. 520N O H. 1350 N Back Save & Continue 2020 BYU 99+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
- 8. 45 kg skier slides down a 410 incline. What would be the magnitude of the skier's acceleration if friction is ignored? A. 2.5 m/s2 O B. 1.65 m/s2 C. 0.4 m/s2 O D. 6.4 m/s2 O E. 0.6 m/s2 O F. 5 m/s2 G. zeroarrow_forwardAn 7.57 kg wagon on a level surface is pulled by a 34.9 N force directed at 24° above the horizontal. If the coefficient of friction is 0.212, what is the net acceleration of the wagon (in m/s²)? O a. 0.921 O b. 0.633 O c. 1.27 O d. 0.844 O e. 3.37 O f. 2.53 O g. 1.74 Oh. Not shown here.arrow_forward. A 2100 kg car experiences a force of 5500 N [S] from the engine and a frictional force of 701 N [N]. What is the acceleration of the car? a. 2.4 m/s2 b. 2.2 m/s2 c. 2.3 m/s2 d. 2.5 m/s2arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
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
Drawing Free-Body Diagrams With Examples; Author: The Physics Classroom;https://www.youtube.com/watch?v=3rZR7FSSidc;License: Standard Youtube License