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 4.2, Problem 1bT
Draw a free-body diagram for the ruler (after it is released from rest). Draw your vectors on the diagram at right. Draw each force at the point at which it is exerted.
Label each force by identifying:
- the type of force.
- the object on which the force is exerted, and
- the object exerting the force.
The diagram you have drawn is called an external free-body diagram.
Is the point at which you placed the gravitational force in your diagram consistent with your knowledge of the net torque about the pivot? Explain.
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Chapter 4 Solutions
Tutorials in Introductory Physics
Ch. 4.1 - Draw arrows on the diagram to represent the...Ch. 4.1 - Mark the position of each of the labeled points at...Ch. 4.1 - Suppose the wheel makes one complete revolution in...Ch. 4.1 - Would two observers on either side of a rotating...Ch. 4.1 - The diagrams at right show top and side views of...Ch. 4.1 - In the space at right sketch the position vectors...Ch. 4.1 - Let | in terms of |o| . 1. The wheel is made to...Ch. 4.1 - Suppose the wheel slows down uniformly, so that ||...Ch. 4.1 - A force of magnitude Fo is applied to point M as...Ch. 4.1 - Compare the magnitude of the net torque about the...
Ch. 4.2 - A ruler is placed on a pivot and held at an angle...Ch. 4.2 - Draw a free-body diagram for the ruler (after it...Ch. 4.2 - How would your free-body diagram change if the...Ch. 4.2 - Predict: which spool will reach the floor first....Ch. 4.2 - Obtain two spools and a ring stand. Use the...Ch. 4.2 - Consider the following discussion between three...Ch. 4.2 - Write down Newton’s second law for each spool....Ch. 4.3 - A T-shaped board of uniform mass density has two...Ch. 4.3 - Prob. 1bTCh. 4.3 - Attach day to the bottom left side of the board so...Ch. 4.3 - Prob. 2bTCh. 4.3 - C. Imagine that the T-shaped board (with no clay...
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