5th Edition

ISBN: 9780321976444

Author: James S. Walker

Publisher: PEARSON

Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

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Textbook Question

Chapter 11, Problem 82GP

Flats Versus Heels A woman might wear a pair of flat shoes to work during the day as in Figure 11-61 (a), but a pair of high heels Figure 11-61 (b), when going out for the evening. Assume that each foot supports half her weight. w = W/2 = 279 N, and that the forces exerted by the floor on her feet occur at the points A and B in both figures. Find the forces F_A (point A) and F_B (point B) for (a) flat shoes and (b) high heels. (c) How have the high heels changed the weight distribution between the woman’s heels and toes?

Chapter 11, Problem 82GP, Flats Versus Heels A woman might wear a pair of flat shoes to work during the day as in Figure 11-61

Figure 11-61 Problem 82

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Chapter 11, Problem 81GP

Chapter 11, Problem 83GP

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Chapter 11 Solutions

Physics (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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