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 4.1, Problem 3bT
Compare the magnitude of the net torque about the pivot in part A to that in each case below.
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Students have asked these similar questions
Determine the net torque on the 3.5-m-long uniform beam shown in the figure. All forces are shown.
Calculate about point C, the CM. Take counterclockwise torques to be positive.
Calculate about point P at one end. Take counterclockwise torques to be positive.
Find the net torque on the wheel in the figure below about the axle through O perpendicular to the page, taking a = 13.0 cm and b = 31.0 cm. (Indicate the direction with the sign of
your answer. Assume that the positive direction is counterclockwise.)
N-m
10.0 N
30.0
12.0N
9.00 N
Find the magnitude of the net torque on the wheel in Figure below about the axle through O, taking ?=17cma=17cm, ?=31cmb=31cm. The magnitude of the applied forces are ?1=26NF1=26N, ?2=23NF2=23N, and ?3=14NF3=14N. Provide your answer in units of m⋅Nm⋅N and round off your answer to 2 decimal places.
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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- A uniform rod of mass and length is held vertically by two strings of negligible mass, as shown below. (a) Immediately after the string is cut, what is the linear acceleration of the free end of the stick? (b) Of the middle of the stick?arrow_forwardGiven the disk and density in Problem 11, derive an expression for the rotational inertia of this disk around an axis at theedge of the disk and perpendicular to the disks surface.arrow_forwardWhat three factors affect the torque created by a force relative to a specific pivot point?arrow_forward
- A system of point particles is shown in the following figure. Each particle has mass 0.3 kg and they all lie in the same place. (a) What is the moment of inertia of the system about the given axis? (b) If the system rotates at 5 rev/s, what is its rotational kinetic energy?arrow_forwardA uniform rod of length L and mass M is held vertically with one end resting on the floor as shown below. When the rod is released, it rotates around its lower end until it hits the floor. Assuming the lower end of the rod does not slip, what is the linear velocity of the upper end when is hits the floor?arrow_forwardAnswer yes or no to the following questions. (a) Is it possible to calculate the torque acting on a rigid object without specifying an axis of rotation? (b) Is the torque independent of the location of the axis of rotation?arrow_forward
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