College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 4, Problem 21P
| You drag a heavy box along a rough horizontal floor by a horizontal rope. Identify the reaction force to each of the following forces: (a) the pull of the rope on the box, (b) the friction force on the box, (c) the normal force on the box, and (d) the weight of the box.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A woman at an airport is towing her 16.5-kg suitcase at constant speed by pulling on a strap at an angle ? above the horizontal. She pulls on the strap with a 34.0-N force, and the friction force on the suitcase is 20.0 N.
(a) Draw a free-body diagram of the suitcase.
(b) What angle does the strap make with the horizontal? °(c) What is the magnitude of the normal force that the ground exerts on the suitcase?
A 10.0-kg box slides over smooth horizontal surface as a force X pulls on it at an angle 30° with the horizontal. If the magnitude of the force X is 30.0 N find the acceleration of the box
a)Joe pushes down the length of the handle of a 12.8 kg lawn spreader. The handle makes an angle of 47.6◦ with the horizontal. Joe wishes to accelerate the spreader from rest to 1.32 m/s in 1.6 s. What force must Joe apply to the handle?
b)Two forces are the only forces acting on a 2.7 kg object which moves with an acceleration of 4.1 m/s2 in the positive y-direction. One of the forces acts in the positive x-direction and has a magnitude of 9.5 N. What is the magnitude of the other force f2?
Chapter 4 Solutions
College Physics (10th Edition)
Ch. 4 - When a car accelerates starting from rest, where...Ch. 4 - If you step hard on the accelerator of your car....Ch. 4 - A passenger in a bus notices that a ball which has...Ch. 4 - It you hit the sidewalk with a hammer, the hammer...Ch. 4 - In a head-on collision between a compact hybrid...Ch. 4 - It would be much easier to lift a bowling ball on...Ch. 4 - A box of mass m1 is stacked on top of a second box...Ch. 4 - If your hands are wet and no towel is handy, you...Ch. 4 - It is possible to play catch with a softball in an...Ch. 4 - Newtons third law tells us that if you push a box...
Ch. 4 - If you drop a 10 lb rock and a 10 lb pillow from...Ch. 4 - Which feels a greater pull due to gravity, a heavy...Ch. 4 - When youre driving on the freeway its necessary to...Ch. 4 - The accelerations due to gravity near the surfaces...Ch. 4 - A golfer tees off and hits the ball with a mighty...Ch. 4 - Three books are at rest on a horizontal table, as...Ch. 4 - A rocket firing its engine and accelerating in...Ch. 4 - A person pushes horizontally with constant force P...Ch. 4 - Suppose the sun. including its gravity, suddenly...Ch. 4 - Three weights hang by very light wires as shown in...Ch. 4 - A woman normally weighs 125 lb. If she is standing...Ch. 4 - A worker pushes horizontally on a 2000 N...Ch. 4 - Far from any gravity, an astronaut accidentally...Ch. 4 - A worker pulls horizontally on a crate on a rough...Ch. 4 - A person pushes two Poxes with a horizontal 100 N...Ch. 4 - | A warehouse worker pushes a crate along the...Ch. 4 - | Two dogs pull horizontally on ropes attached to...Ch. 4 - | A man is dragging a trunk up the loading ramp of...Ch. 4 - | BIO Jaw injury. Due to a jaw injury, a patient...Ch. 4 - | Workmen are trying to free an SUV stuck in the...Ch. 4 - A box rests. on a frozen pond, which serves as a...Ch. 4 - | In outer space, a constant force is applied to a...Ch. 4 - || A 68.5 kg skater Moving initially at 2.40 m/s...Ch. 4 - BIO Animal dynamics. An adult 68 kg cheetah can...Ch. 4 - || A 2 kg block sits at rest on a frictionless...Ch. 4 - A dock worker applies a constant horizontal force...Ch. 4 - | (a) What is the mass of a book that weighs 320 N...Ch. 4 - Superman throws a 2400 N boulder at an adversary....Ch. 4 - | BIO (a) How many newtons does a 150 lb person...Ch. 4 - | BIO(a) An ordinary flea has a mass of 210 g. How...Ch. 4 - | BIO Calculate the mass (in SI units) of (a) a...Ch. 4 - || A standard bathroom scale is placed on an...Ch. 4 - || At the surface of Jupiters moon lo, the...Ch. 4 - || A scientific instrument that weighs 85.2 N on...Ch. 4 - || Planet X! When venturing forth on Planet X, you...Ch. 4 - | You drag a heavy box along a rough horizontal...Ch. 4 - || A person pushes two boxes with a horizontal...Ch. 4 - | The upward normal force exerted by the floor is...Ch. 4 - | A person throws a 2.5 lb stone into the air with...Ch. 4 - | A tennis ball traveling horizontally at 22 m/s...Ch. 4 - || Two crates, A and S, sit at rest side by side...Ch. 4 - || A ball is hanging from a long string that is...Ch. 4 - | A person drags her 65 N suitcase along the rough...Ch. 4 - || A factory worker pushes horizontally on a 250 N...Ch. 4 - || A dock worker pulls two boxes connected by a...Ch. 4 - || A hospital order y pushes horizontally on two...Ch. 4 - | A uniform 25.0 kg chain 2.00 m long supports a...Ch. 4 - | A 60 kg circus performer is climbing up a rope...Ch. 4 - | A 275 N bucket is lifted with an acceleration of...Ch. 4 - || BIO Human biomechanics. World-class sprinters...Ch. 4 - || A chair of mass 12.0 kg is sitting on the...Ch. 4 - || BIO Human biomechanics. The fastest pitched...Ch. 4 - || You walk into an elevator, step onto a scale,...Ch. 4 - || A woman is standing in an elevator holding her...Ch. 4 - || An advertisement claims that a particular...Ch. 4 - || A rifle shoots a 4.20 g bullet out of its...Ch. 4 - || A parachutist relies on air resistance (mainly...Ch. 4 - As shown in Figure 4.40, force vector F1 always...Ch. 4 - || A spacecraft descends vertically near the...Ch. 4 - || BIO A standing vertical Jump, NFL player Gerald...Ch. 4 - || You leave the doctors office after your annual...Ch. 4 - || BIO Human biomechanics. The fastest served...Ch. 4 - || Extraterrestrial physics. You have landed on an...Ch. 4 - || Jumping to the ground. A 75.0 kg man steps off...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk(*) desig...
Cosmic Perspective Fundamentals
Three friends tie three ropes in a knot and pull on the ropes in different directions. Adrienne (rope 1) exerts...
College Physics
Briefly describe Earth’s core-mantle-crust structure and how it developed this structure. What is the lithosphe...
Life in the Universe (4th Edition)
21. Which of the three drag racers in Question 20 had the greatest acceleration at t = 0 s?
A. Andy
B. Betty
C....
College Physics: A Strategic Approach (4th Edition)
25. FIGURE EX4.25 shows the angular-velocity-versus-time graph for a particle moving in a circle, starting from...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Write each number in decimal form.
30. 3.78 × 10–2
Applied Physics (11th 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
- Does the ground need to exert a force on you for you to jump off the ground, or do you need to exert a force on the ground? If the ground must exert a force on you, is that force greater than the force you exert on the ground?arrow_forwardA 3.00-kg object is moving in a plane, with its x and y coordinates given by x = 5t2 1 and y = 3t3 + 2, where x and y are in meters and t is in seconds. Find the magnitude of the net force acting on this object at t = 2.00 s.arrow_forwardYou are playing with your daughter in the snow. She sits on a sled and asks you to slide her across a flat, horizontal field. You have a choice of (a) pushing her from behind, by applying a force downward on her shoulders at 30 below the horizontal (Fig. 5.2a) or (b) attaching a rope to the front of the sled and pulling with a force at 30 above the horizontal (Fig 5.2b). Which would be easier for you and why?arrow_forward
- A crate of weight Fg is pushed by a force P on a horizontal floor as shown in Figure P4.83. The coefficient of static friction is s, and P is directed at angle below the horizontal. (a) Show that the minimum value of P that will move the crate is given by P=sFgsec1stan (b) Find the condition on in terms of , for which motion of the crate is impossible for any value of P. Figure P4.83arrow_forwardA force F applied to an object of mass m1, produces an acceleration of 3.00 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 1.00 m/s2. (a) What is the value of the ratio m1/m2,? (b) m1 and m2 are combined into one object, find its acceleration under the action of the force F.arrow_forwardAn object of mass m is dropped al t = 0 from the roof of a building of height h. While the object is falling, a wind blowing parallel to the face of the building exerts a constant horizontal force F on the object. (a) At what time t does the object strike the ground? Express t in terms of g and h. (b) Find an expression in terms of m and F for the acceleration ax of the object in the horizontal direction (taken as the positive x direction). (c) How far is the object displaced horizontally before hitting the ground? Answer in terms of m, g, F, and h. (d) Find the magnitude of the objects acceleration while it is falling, using the variables F, m, and g.arrow_forward
- |(1) Two objects are connected by a light string that passes over a frictionless pulley as shown in Figure 2. is frictionless and take m, =2.00 kg, m = 6.00 kg, and 0 = 55.0°. (a) Draw free-body diagrams of both objects. Find (b) the magnitude of the accel eration of the objects, (c) the ten- sion in the string, and (d) the speed of each object 2.00 s after it is released from rest. Assume the inclinearrow_forwardBlock A weighs 1.50 N, and block B weighs 4.00 N. The coefficient of kinetic friction between all surfaces is 0.20. Find the magnitude of the horizontal force F necessary to drag block B to the left at a constant speed if A and B are connected by a light, flexible cord passing around a fixed, frictionless pulley. А F Barrow_forwardAn object weighing 50 lbf is being pushed downwards at an angle of 40° with the horizontal is already at motion. If the coefficient of static friction is 0.4 and dynamic friction 0.35. Determine (a) what must be the applied force P and (b) the applied force P if it is pulled upwards at the same angle. 40° 50 lbfarrow_forward
- A 80.0 kg fruit box is initially at rest on a horizontal surface. Salim pulls the bes horizontally with a force F of magnitude 220.0 N. At the same time Ibrahim tries to help Salim by lifting the box with a vertical force P, see figure below. The coefficients of friction for the box and surface are p,= 0.40 and 4,= 0.25. Determine the magnitude of the frictional force acting on the box a) if the magnitude of P is 150.0N b) if the magnitude of P is 280.0 N c) What is the acceleration of the block?arrow_forwardFind the smallest possible force that the woman should pull to cause the crate to slide. Coefficientof static friction is 0.20.arrow_forwardMountain goats can easily scale slopes angled at 60° from horizontal. What are the normal force and the static friction force acting on a mountain goat that weighs 900 N and is standing on such a slope?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: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher: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
College Physics
Physics
ISBN:9781305952300
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
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Drawing Free-Body Diagrams With Examples; Author: The Physics Classroom;https://www.youtube.com/watch?v=3rZR7FSSidc;License: Standard Youtube License