Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Textbook Question
Chapter 2.2, Problem 2dT
Consider the following discussion between two students.
Student 1: “System A and system 3 are pushed by the same force as before, so they will have the same motion as in section I”
Student 2: “I disagree. I think that they are speeding up since friction is less. So now system A is pushing on system B with a greater force than system B is pushing on system A.”
With which student, if either, do you agree? Explain your reasoning.
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Students have asked these similar questions
Consider the system shown in the figure (Figure 1). Block A weighs 45.1 NN and block B weighs 24.6 NN . Once block B is set into downward motion, it descends at a constant speed.
1. Calculate the coefficient of kinetic friction between block A and the tabletop.
2. A cat, also of weight 45.1 NN , falls asleep on top of block A. If block B is now set into downward motion, what is its acceleration magnitude?
You hold your physics textbook in your hand. (Assume that no other objects are in contact with the book.)
Answer A, B, C, D, E, in the photo below.
selection for B&C possible answers as follows, up, down, or NA
possible answers for E are as follows, floor on hand, floor on book, book on hand, or hand on earth.
A, Identify the forces acting on the book. (Select all that apply.)
B, For each force you identified in part (a), indicate the direction. (If a force is not applicable, choose NA.)
C, Identify the forces acting on your hand. (Select all that apply.)
D, For each force you identified in part (c), indicate the direction. (If a force is not applicable, choose NA.)
E, Identify the forces that form the action-reaction pair as defined by Newton's third law.
Show transcribed image text a) Refer to Figure #1. A wagon is moving in a straight line with constant acceleration ax and its kinematics is measured with respect to inertial coordinates (X1, Y1). A ball inside the wagon is acted upon by a force F (components F7 and Fy) and gravity force Mg. The coordinate (x2. Y2) is moving with the wagon. Determine the acceleration of the ball measured in the (X2. Y2) coordinate frame. In other words, compute the acceleration of the ball relative to the wagon.
(a) Answer: a(M/W)x = FX/M - ax; a(M/W)y = Fy/M - g
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...
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