Physics, Books a la Carte Plus Mastering Physics with Pearson eText -- Access Card Package (5th Edition)

5th Edition

ISBN: 9780134032610

Author: James S. Walker

Publisher: PEARSON

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

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Textbook Question

Chapter 11, Problem 89GP

BIO Peak Pedaling Torque The downward force produced by the quadriceps muscles during the power stroke of bicycle-pedaling motion is shown in Figure 11-67 as a function of the crank angle ϕ (see Figure 11-39.The force from these muscles decreases linearly, but the torque depends on the crank angle according to τ = rFsin (180° − ϕ). Use the information in the graph, together with a computer spreadsheet to find the angle ϕ at which the pedaling torque produced by the quadriceps muscle is a maximum. (Note that the actual torque applied to the crank is a result of the action of many muscles in addition to the quadriceps).

Chapter 11, Problem 89GP, BIO Peak Pedaling Torque The downward force produced by the quadriceps muscles during the power

Figure 11-67 Problem 89

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Chapter 11, Problem 88GP

Chapter 11, Problem 90GP

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Chapter 11 Solutions

Physics, Books a la Carte Plus Mastering Physics with Pearson eText -- Access Card Package (5th Edition)

Ch. 11.1 - A bicycle wheel is mounted on an axle, as shown in...Ch. 11.2 - Consider two objects with the following...Ch. 11.3 - A Physics sign is supported symmetrically by two...Ch. 11.4 - A mobile made from three piggy banks (A, B, C) is...Ch. 11.5 - Prob. 5EYU Ch. 11.6 - Consider two objects with the following...Ch. 11.7 - Prob. 7EYU Ch. 11.8 - In system 1, a torque of 20 N m acts through an...Ch. 11.9 - The angular velocity of the spinning bicycle wheel...Ch. 11 - Two forces produce the same torque. Does it follow...

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