Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2.1, Problem 1aT
Draw a large dot on your large sheet of paper to represent the block. Draw vectors with their “tails” on the dot to show the forces exerted on the block. Label each vector and write a brief description of that force next to the vector.
In Newtonian physics, all forces are considered as arising from an interaction between two objects. Forces are specified by identifying the object on which the force is exerted and the object that is exerting the force. For example, in the situation above, a gravitational force is exerted on the block by the Earth.
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule05:17
Students have asked these similar questions
A 1,040-N crate is being pushed across a level floor at a constant speed by a force
F
of 390 N at an angle of 20.0° below the horizontal, as shown in the figure a below.
Two figures show a side view of a crate positioned upon a horizontal surface.
Figure (a): An arrow pointing downward and to the right is labeled vector F and forms an angle of 20° below the horizontal as it approaches the upper left edge of the crate.
Figure (b): An arrow pointing upward and to the right is labeled vector F and forms an angle of 20° above the horizontal as it extends from the upper right edge of the crate.
(a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.)(b) If the 390-N force is instead pulling the block at an angle of 20.0° above the horizontal, as shown in the figure b, what will be the acceleration of the crate? Assume that the coefficient of friction is the same as that found in part (a).
Is the following statement true or false? Explain.
The resultant of the weight and the force required to move an object up an inclined plane is a vector perpendicular to the plane.
Choose the correct answer below.
O A. The statement is false because the resultant will always be a vector that is pointing up from the object on the inclined plane, at a 90° angle to the plane itself.
O B. The statement is false because the resultant will always be a vector that is pointing in the opposite direction that the object is moving along the inclined plane, at a 90°
angle to the vector representing the force of gravity.
OC. The statement is true because the resultant will always be a vector that is pointing down from the object on the inclined plane, at a 90° angle to the plane itself.
O D. The statement is true because the resultant will always be a vector that is pointing in the same direction that the object is moving along the inclined plane, at a 90° angle to
the vector representing the force…
An object of mass m has these three forces acting on it . F1, F2, and F3 are shown in the figure. Assume the x-direction is to the right, and the y-direction is straight upwards.
Let F1 = 7 N, F2 = 9 N, and F3 = 2 N.
What is the direction of the net force, expressed as the angle θ, in degrees, that the net force vector makes with respect to the +x-axis? Enter an angle between −180∘ and +180∘.
Chapter 2 Solutions
Tutorials in Introductory Physics
Ch. 2.1 - Draw a large dot on your large sheet of paper to...Ch. 2.1 - Describe the remaining forces you have indicated...Ch. 2.1 - All forces arise from interactions between...Ch. 2.1 - There are many different types of forces,...Ch. 2.1 - Consider the following discussion between two...Ch. 2.1 - Label each of the forces on your free-body diagram...Ch. 2.1 - Sketch a free-body diagram for a book at rest on a...Ch. 2.1 - A second book of greater mass is placed on top of...Ch. 2.1 - Compare the free-body diagram for the lower book...Ch. 2.1 - Which, if any, Newton’s third law force pairs are...
Ch. 2.1 - A magnet is supported by another magnet as shown...Ch. 2.1 - An iron rod is held up by a magnet as shown. The...Ch. 2.2 - Compare the net force (magnitude and direction) on...Ch. 2.2 - Draw separate free-body diagrams for system A and...Ch. 2.2 - Is the magnitude of the force exerted on system A...Ch. 2.2 - D. Identify all the Newton's third law...Ch. 2.2 - Rank the magnitudes of the horizontal forces that...Ch. 2.2 - Suppose the mass of each brick is 2.5 kg, the...Ch. 2.2 - Describe the motions of systems A and B. How does...Ch. 2.2 - Compare the net force (magnitude and direction) on...Ch. 2.2 - Draw and label separate free-body diagrams for...Ch. 2.2 - Consider the following discussion between two...Ch. 2.2 - Rank the magnitudes of all the horizontal forces...Ch. 2.2 - Compare the magnitude of the netforce on system C...Ch. 2.2 - Draw and label a free-body diagram for system C....Ch. 2.2 - At right is a free-body diagram for a cart. All...Ch. 2.3 - Describe the motions of block A, block B, and the...Ch. 2.3 - On a large sheet of paper, draw a separate...Ch. 2.3 - Identify all the Newton's third law...Ch. 2.3 - Rank, from largest to smallest, the magnitudes of...Ch. 2.3 - Consider the horizontal components of the forces...Ch. 2.3 - If the motion of the blocks is the same as in...Ch. 2.3 - Suppose the mass of the string that connects...Ch. 2.3 - A string exerts a force on each of the two objects...Ch. 2.3 - If you know that the net force on a massless...Ch. 2.3 - Predict the subsequent motions of objects A and B...Ch. 2.3 - Draw separate free-body diagrams for objects A and...Ch. 2.3 - Predict: • what will happen to object C when it is...Ch. 2.3 - Draw and label separate free-body diagrams for...Ch. 2.3 - The weight of a 200 g mass has magnitude...Ch. 2.3 - Consider the following statement about the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Which of the two planets (Esus or Sulis) do you think will move around the central star in the least amount of ...
Lecture- Tutorials for Introductory Astronomy
TEST YOUR UNDERSTANDING OF SECTION 17.4 In the bimetallic strip shown in Fig. 17.3a, metal 1 is copper. Which o...
University Physics with Modern Physics (14th Edition)
A hemispherical bowl is at rest on a frictionless counter. A mouse drops onto the bowls rim from a cabinet dire...
Essential University Physics: Volume 1 (3rd 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, Vol. 1 (Chs 1-21) (4th Edition)
1. A 5.0-ft-tall girl stands on level ground. The sun is 25° above the horizon. How long is her shadow?
College Physics: A Strategic Approach (4th Edition)
Use data for the Moons orbit from Appendix E to compute the Moons acceleration in its circular orbit, and verif...
Essential University Physics (3rd 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 God of War, Kratos pushes a canoe with his son in it across the sand towards water. Kratos applies a force of 751. N in the positive direction while friction causes a 395. N horizontal force is applied in the opposite direction. What is the net force on the boat?arrow_forwardA crate of mass m = 1.27 kg is on a frictionless incline that makes an angle of θ = 29.3 degrees with horizontal. A force of magnitude P = 9.45 N is applied to the crate in a direction parallel and up the incline, as shown. a. Write an expression for the acceleration ax of the crate, where positive x is up the incline. Your answer should be in terms of m, P, θ, and g (9.80 m/s2). b. What is the acceleration of the crate in m/s2 in the x direction defined in part (a)? c. What is the direction of the net force on the crate? d. What is the direction of the velocity of the crate?arrow_forwardTwo crates connected by a rope lie on a horizontal surface (Figure 1). Crate A has mass mA and crate B has mass mB. The coefficient of kinetic friction between each crate and the surface is μk. The crates are pulled to the right at constant velocity by a horizontal force F. In terms of mA, mB, and μk, calculate the magnitude of the force F. Express your answer in terms of some or all of the variables mA, mB, μk, and acceleration due to gravity g. In terms of mA, mB, and μk, calculate the tension in the rope connecting the blocks. Include the free-body diagram or diagrams you used to determine each answer.arrow_forward
- A 7.0 kg object is resting on a plane that is inclined at 12° to the horizontal. Complete the vector equations for this situation. Aarrow_forwardWorkmen are trying to free an SUV stuck in the mud. To extricate the vehicle, they use three horizontal ropes, producing the force vectors shown in the figure attached. Take F1 = 913 N, F2 = 688 N, and F3 = 336 N. a) Find the x components of each of the three pulls. Express your answers in newtons separated by commas. b) Find the y components of each of the three pulls. Express your answers in newtons separated by commas. c) Use the components to find the magnitude of the resultant of the three pulls. Express your answer in newtons to three significant figures. d) Use the components to find the direction of the resultant of the three pulls. Express your answer in degrees as the angle counted from +x axis in the counterclockwise direction.arrow_forwardPart A - Finding the Cartesian components of a force described by direction angles Find the Cartesian components of force P acting in the x, y, and z directions given P = 50.0 N, a = 110.0°, B= 29.5°, and y=69.3°. Recall that is the angle between the vector and the x axis, ß is the angle between the vector and the y axis, and y is the angle between the vector and the z axis. Express your answers, separated by commas, to three significant figures.arrow_forward
- Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N to the left, the second a force of 90.0 N to the right, the force of friction acts in the direction opposite to the motion of the cart and has a magnitude of 12.0 N. The mass of the third child plus wagon is 23.0 kg.a. Draw a diagram showing all forces acting on the third child.b. Calculate the child’s acceleration.c. What would the acceleration be if the magnitude of the force of friction were 15.0N?arrow_forwardJuan is helping his mother rearrange the living room furniture. Juan pushes on the armchair with a force of 30.0 N directed at an angle of 25.0 degree above a horizontal line while his mother pushes with a force of 60.0 N directed at an angle of 35.1 degree below the same horizontal. What is the direction of the vector sum of these two forces? If the direction is below the horizontal, enter a negative value and if the direction is above the horizontal, enter a positive value.arrow_forward788 N 53⁰ y 32° 411 N 31° 985 N x 2. Workmen are trying to free an SUV stuck in the mud. To extricate the vehicle, they use three horizontal ropes, producing the force vectors shown in the Figure on the left. a. Find the x- and y-components of each of the three pulls. b. Use the components to find the magnitude and direction of the resultant of the three pulls.arrow_forward
- To extricate an SUV stuck in the mud, workmen use three horizontal ropes, producing the force vectors shown in the picture a. Find the x components of each of the three pulls b. find the y components of each of the three pullsarrow_forwardA crate of mass m=66.2 kg is on a horizontal surface. Assume there is no friction between the crate and the surface. Two forces with magnitude F=11.2 N are applied to the crate, as shown. One force is horizontal, and the other makes and angle of φ = 37.4∘ with horizontal, as shown. A. Write an expression for the magnitude of the acceleration of the crate in terms of F, m, and φ. B. What is the magnitude of the acceleration of the crate in m/s2?arrow_forwardA cart of mass 8.0kg was moved by applying two constant forces. Force 1 is 28.0N at 42.0 degrees, and Force 2 is 13.0N at 110 degrees. Initially, the cart has a velocity of (3.50i + 2.20j)m/s. a. Express the two forces in unit-vector notation.b. Find the total force exerted on the cart.c. Find the angle at which the total force is applied.d. What is the acceleration of the cart?e. What is the cart's velocity after 5.0s?f. What is the position of the cart after 5.0s?g. What is the angle of the position after 5.0s?h. What is the total work done by the two applied forces?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Newton's Third Law of Motion: Action and Reaction; Author: Professor Dave explains;https://www.youtube.com/watch?v=y61_VPKH2B4;License: Standard YouTube License, CC-BY