Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 22PCE
A force of magnitude 7.50 N pushes three boxes with masses m1 = 1 .30 kg, m2 = 3.20 kg, and m3 = 4.90 kg, as shown in Figure 5-29. Find the magnitude of the contact force (a) between boxes 1 and 2, and (b) between boxes 2 and 3.
Figure 5-29 Problem 22
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Four people are attempting to move a stage platform across the floor. If they exert the horizontal forces shown, determine (a) the
equivalent force-couple system at O and (b) the points on the x- and y-axes through which the line of action of the single resultant force
R passes.
Assume F1-69 lb, F2-60 lb, F3-32 lb. F4-61 lb,a-75 in, b-60 in, and = 47°
F₁
F₁-
Answers:
(a) The force-couple system at O
R=
b
Mo-
(i
i
(b) The line of action of the single resultant R:
On the x-xx-
On the y-axis y
i
klb-in
in.
in.
Four people are attempting to move a stage platform across the floor. If they exert the horizontal forces shown, determine (a) the
equivalent force-couple system at O and (b) the points on the x- and y-axes through which the line of action of the single resultant force
R passes.
Assume F₁-71 lb, F2-61 lb, F3-39 lb. F4-51 lb, a-74 in., b-60 in., and 0 = 47°
F₁
ΤΑ
B.
F₂
F₁
Answers:
(a) The force-couple system at O:
R=
(i
it i
j) lb
Mo-
i
k lb-in.
(b) The line of action of the single resultant R:
On the x-axis x-
On the y-axis y
i
10
8
in.
in.
Which of the following gives the x-component & y-component of the resultant of the sets of forces?
Chapter 5 Solutions
Physics (5th Edition)
Ch. 5.1 - Two forces have magnitudes F1 and F2. If these...Ch. 5.2 - Which of the following statements is correct? A: A...Ch. 5.3 - The acceleration of an object has a magnitude a....Ch. 5.4 - A force F pushes on three boxes that slide without...Ch. 5.5 - An object is acted on by a single force that is at...Ch. 5.6 - When a certain person steps onto a scale on solid...Ch. 5.7 - Figure 5-23 shows four identical bricks that are...Ch. 5 - Driving down the road, you hit the brakes...Ch. 5 - Youve probably seen pictures of someone pulling a...Ch. 5 - As you read this, you are most likely sitting...
Ch. 5 - When a dog gets wet, it shakes its body from head...Ch. 5 - A young girl slides down a rope. As she slides...Ch. 5 - A block of mass m hangs from a string attached to...Ch. 5 - An astronaut on a space walk discovers that his...Ch. 5 - Two untethered astronauts on a space walk decide...Ch. 5 - In Figure 5-25 Wilbur asks Mr. Ed, the talking...Ch. 5 - A whole brick has more mass than half a brick,...Ch. 5 - The force exerted by gravity on a whole brick is...Ch. 5 - Is it possible for an object at rest to have only...Ch. 5 - Is it possible for an object to be in motion and...Ch. 5 - A bird cage, with a parrot inside, hangs from a...Ch. 5 - Suppose you jump from the cliffs of Acapulco and...Ch. 5 - A friend tells you that since his car is at rest,...Ch. 5 - Since all objects are weightless in orbit, how is...Ch. 5 - To clean a rug, you can hang it from a clothesline...Ch. 5 - If you step off a high board and drop to the water...Ch. 5 - Is it possible for an object to be moving in one...Ch. 5 - Since a bucket of water is weightless in space,...Ch. 5 - In the movie The Rocketeer, a teenager discovers a...Ch. 5 - List three common objects that have a weight of...Ch. 5 - An object of mass m is initially at rest. After a...Ch. 5 - On a planet far, far away, an astronaut picks up a...Ch. 5 - In a grocery store, you push a 15.4-kg shopping...Ch. 5 - You are pulling your little sister on her sled...Ch. 5 - A 0.53-kg billiard ball initially at rest is given...Ch. 5 - A 92-kg water skier floating in a lake is pulled...Ch. 5 - A 0.5-kg object is acted on by a force whose x...Ch. 5 - Predict/Explain You drop two balls of equal...Ch. 5 - Predict/Calculate A 42.0-kg parachutist is moving...Ch. 5 - Predict/Calculate In baseball, a pitcher can...Ch. 5 - A major-league catcher gloves a 92 mi/h pitch and...Ch. 5 - Driving home from school one day, you spot a ball...Ch. 5 - Stopping a 747 A 747 jetliner lands and begins to...Ch. 5 - The Ux-versus-time graph for a 1.8-kg object is...Ch. 5 - Predict/Calculate A drag racer crosses the finish...Ch. 5 - Predict/Explain A small car collides with a large...Ch. 5 - Predict/Explain A small car collides with a large...Ch. 5 - As you catch a 0.14-kg ball it accelerates at...Ch. 5 - BIO Woodpecker Concussion Prevention A woodpecker...Ch. 5 - On vacation, your 1400-kg car pulls a 560-kg...Ch. 5 - Predict/Calculate An 85-kg parent and a ?4-kg...Ch. 5 - A force of magnitude 7.50 N pushes three boxes...Ch. 5 - A force of magnitude 7.50 N pushes three boxes...Ch. 5 - Predict/Calculate Two boxes sit side-by-side on a...Ch. 5 - A skateboarder on a ramp is accelerated by a...Ch. 5 - Three objects, A, B, and C, have x and y...Ch. 5 - A farm tractor tows a 3300-kg trailer up a 14...Ch. 5 - A shopper pushes a 7 5-kg shopping cart up a 13...Ch. 5 - Two crewmen pull a rail through a lock, as shown...Ch. 5 - A hockey puck is acted on by one or more forces as...Ch. 5 - To give a 19-kg child a ride, two teenagers pull...Ch. 5 - Predict/Calculate A 65-kg skier speeds down a...Ch. 5 - An object acted on by three forces moves with...Ch. 5 - A train is traveling up a 2 88 incline at a speed...Ch. 5 - The Force Exerted on the Moon In Figure 5-37 we...Ch. 5 - You pull upward on a stuffed suitcase with a force...Ch. 5 - BIO Brain Growth A newborn babys brain grows...Ch. 5 - Suppose a rocket launches with an acceleration of...Ch. 5 - During an episode of turbulence in an airplane you...Ch. 5 - At the bow of a ship on a stormy sea, a crewman...Ch. 5 - Predict/Calculate As part of a physics experiment...Ch. 5 - When you weigh yourself on good old terra firma...Ch. 5 - Predict/Calculate BIO Flight of the Samara A...Ch. 5 - When you lift a bowling ball with a force of 82 N,...Ch. 5 - A 23-kg suitcase is pulled with constant speed by...Ch. 5 - (a) Draw a free-body diagram for the skier in...Ch. 5 - A 9.3-kg child sits in a 3.7-kg high chair. (a)...Ch. 5 - Figure 5-39 shows the normal force N experienced...Ch. 5 - Figure 5-40 shows the normal force N as a function...Ch. 5 - A 5.0-kg bag of potatoes sits on the bottom of a...Ch. 5 - Predict/Calculate (a) Find the normal force...Ch. 5 - Predict/Calculate A gardener mows a lawn with an...Ch. 5 - Figure 5-41 Problems 53 53 An ant walks slowly...Ch. 5 - CE Predict/Explain Riding in an elevator moving...Ch. 5 - CE Predict/Explain Riding in an elevator moving...Ch. 5 - CE Give the direction of the net force acting on...Ch. 5 - CE Predict/Explain You jump out of an airplane and...Ch. 5 - In a tennis serve, a 0.070-kg ball can be...Ch. 5 - BIO Human Heart Force The left ventricle of the...Ch. 5 - A 51 5-kg swimmer with an initial speed of 1.25...Ch. 5 - The ax-versus-time graph for a 2.0-kg object is...Ch. 5 - A skateboarder starts from rest and rolls down a...Ch. 5 - The rotors of a 15,200-kg heavy-lift helicopter...Ch. 5 - As it pulls itself up to a branch, a chimpanzee...Ch. 5 - CE Each of the three identical hockey pucks shown...Ch. 5 - Predict/Calculate The VASIMR Rocket NASA plans to...Ch. 5 - An object of mass m = 5.95 kg has an acceleration...Ch. 5 - At the local grocery store, you push a 14.5-kg...Ch. 5 - BIO Predict/Calculate The Force of Running...Ch. 5 - BIO Predict/Calculate Grasshopper Liftoff To...Ch. 5 - Takeoff from an Aircraft Carrier On an aircraft...Ch. 5 - The Ux-versus-time graph for a 1.8-kg object is...Ch. 5 - Predict/Calculate An archer shoots a 0.024-kg...Ch. 5 - An apple of mass m = 0.13 kg falls out of a tree...Ch. 5 - BIO The Fall of T. rex Paleontologists estimate...Ch. 5 - Deep Space 1 The NASA spacecraft Deep Space 1 was...Ch. 5 - Your groceries are in a bag with paper handles....Ch. 5 - BIO A Leafhopper's Leap The motion of jumping...Ch. 5 - Predict/Calculate At the airport, you observe some...Ch. 5 - Prob. 80GPCh. 5 - Two boxes are at rest on a smooth, horizontal...Ch. 5 - You have been hired to help improve the material...Ch. 5 - Prob. 83GPCh. 5 - A baseball of mass m and initial speed U strikes a...Ch. 5 - When two people push in the same direction on an...Ch. 5 - An air-track cart of mass m1 = 0.14 kg is moving...Ch. 5 - BIO Increasing Safety in a Collision Safety...Ch. 5 - BIO Increasing Safety in a Collision Safety...Ch. 5 - BIO Increasing Safety in a Collision Safety...Ch. 5 - BIO Increasing Safety in a Collision Safety...Ch. 5 - Predict/Calculate Referring to Example 5-8 Suppose...Ch. 5 - Referring to Example 5-8 Suppose the force of 30.0...Ch. 5 - Predict/Calculate Referring to Figure 5-13 Suppose...Ch. 5 - Predict/Calculate Referring to Figure 5-13 Suppose...
Additional Science Textbook Solutions
Find more solutions based on key concepts
The drilled sample showed no signs of life on asteroid B612, but we found many complex organic molecules.
Life in the Universe (4th Edition)
Calculate the rotational kinetic energy of a 12-kg motorcycle wheel if its angular velocity is 120 rad/s and it...
University Physics Volume 1
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
17. In the Swing
A rope swing is hung from a tree right at the edge of a small creek. The rope is 5.0 m long; t...
College Physics: A Strategic Approach (4th Edition)
1. If a particle’s speed increases by a factor of 3, by what factor does its kinetic energy change?
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Write each number in scientific notation.
19. 732,000,000,000,000,000
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
- A bag of cement weighing 325 N hangs in equilibrium from three wires as suggested in Figure P4.23. Two of the wires make angles 1 = 60.0 and 2 = 40.0 with the horizontal. Assuming the system is in equilibrium, find the tensions T1, T2, and T3 in the wires. Figure P4.23 Problems 23 and 24.arrow_forwardProblem 10: 3 2 Fp 1 Three boxes are stacked on a frictionless surface as shown. A person pulls on box 1 with a force F = 145 N at an angle of 20° above the horizontal. Boxes 1 and 2 each have a mass of 4kg, and box 3 has a mass of 2 kg. Assuming there is enough friction between the boxes to keep the boxes from moving relative to each other, what is the magnitude and direction of the total force box 2 exerts on box 1?arrow_forwardA block is placed on a wooden plank, which is initially horizontal. One end of the plank is slowly raised to make it more and more inclined, and for a while the block stays in place on the plank and doesn't slide due to static friction. Finally, when the plank reaches an incline of 56.3oabove horizontal, the block begins to slide. What is the coefficient of static friction between the block and the plank?arrow_forward
- Let there be 2 blocks stacked on a table. The top block has a mass of 2.0 kg, and the bottom block has a mass of 5.0 kg. The coefficient of static friction between the two blocks is 0.40, and the coefficient of static friction between the bottom block and table is 0.10. What is the maximum horizontal force you can apply to the top block such that neither block moves?arrow_forwardA wedge with mass M rests on a frictionless, horizontal tabletop. A block with mass m is placed on the wedge, and a horizontal force F S is applied to the wedge (Fig.). What must the magnitude of F S be if the block is to remain at a constant height above the tabletop?arrow_forwardA block of mass m1 = 3.9 kg is placed on top of a block with mass m2 = 5.4 kg. A force, F = is applied to m2, at an angle 16.1 degrees above the horizontal. If the coefficient of static friction between all moving surfaces is 0.42 and the coefficient of kinetic friction is 0.32, determine the magnitude of the minimum force that will get the blocks moving.arrow_forward
- The horizontal force P = 85 N is applied to the upper block with the system initially stationary. The block masses are mĄ = 19 kg and mp = 9 kg. Determine the magnitudes of the frictions forces F₁ (between block A and the ground) and F2 (between blocks A and B) for the following conditions on the coefficients of static friction: (a) ₁ = 0.37,₂ = 0.38 and (b) ₁ = 0.26,2 = 0.48. Assume that the coefficients of kinetic friction are 74 percent of the static values. P Answers: (a) F₁ = (b) F₁ = D B 20⁰ A H₂ μ1 N F₂= N F₂= i i N Narrow_forwardA 100 N force, directed at an angle u above a horizontal floor, is applied to a 25.0 kg chair sitting on the floor. If u =0, what are (a) the horizontal component Fh of the applied force and (b) the magnitude FN of the normal force of the floor on the chair? If u =30.0, what are (c) Fh and (d) FN? If u =60.0, what are (e) Fh and (f) FN? Now assume that the coefficient of static friction between chair and floor is 0.420. Does the chair slide or remain at rest if u is (g) 0, (h) 30.0, and (i) 60.0?arrow_forwardForces A, B and Care applied at the origin in the directions indicated in the figure below. A has a magnitude of 22 N and is 40 above the positive X-axis. B has a magnitude of 25 N and is 60* above the negative X-axis. The forces are in equilibrium. 0 15 N B -10 60 20 15 8 10 int D 4 8 3 8 3 45- 20 25 30- C 435 N The magnitude of the components of A are most nearly (enter as positive): |A₂| N and A The magnitude of the components of B are most nearly (enter as positive): B₂ N and B The magnitude of force Čapplied at the origin required to balance the system is most nearly: N to th The angle of force from the negative X-axis as indicated is most nearly: 409 TO BE fast 75arrow_forward
- A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 525 N. As the drawing shows, she is closer to the left cliff than to the right cliff, with the result that the tensions in the left and right sides of the rope are not the same. Find the tensions in the rope to the left and to the right of the mountain climber. 80.0⁰ TL = TR= Mi i -65.0⁰ 18 < < |arrow_forwardTwo blocks of masses M1 = 3.5 kg and M2 = 5.7 kg are at rest on a horizontal surface with a coefficient of friction uk = 0.12. You start them moving by pushing on block 1 with a force F1H = 33 N at an angle of 42 degrees below the horizontal. The magnitude of kinetic friction force on each bock is f1 = 6.76 N and f2 = 6.70 N Determine the acceleration of the blocks and the magnitude of the normal force between the blocks.arrow_forwardConsider Figure P2-10 on P. 37 of your textbook showing two forces applied to a truss. Assume the 400 N acts along the + x-axis. a) Find the magnitude of the resultant force acting at point B. b) What is the angle © between the resultant force and the + x-axis?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author: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
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY