10th Edition

ISBN: 9781118230725

Author: David Halliday, Robert Resnick, Jearl Walker

Publisher: Wiley, John & Sons, Incorporated

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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

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Textbook Question

Chapter 12, Problem 78P

In Fig. 12-82, a uniform beam of length 12.0 m is supported by a horizontal cable and a hinge at angle θ = 50.0°. The tension in the cable is 400 N. In unit-vector notation, what are (a) the gravitational force on the beam and (b) the force on the beam from the hinge?

Chapter 12, Problem 78P, In Fig. 12-82, a uniform beam of length 12.0 m is supported by a horizontal cable and a hinge at

Figure 12-82 Problem 78.

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Chapter 12, Problem 77P

Chapter 12, Problem 79P

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Chapter 12 Solutions

Fundamentals of Physics Extended

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In Fig. 12-82, a uniform beam of length 12.0 m is supported by a horizontal cable and a hinge at angle θ = 50.0°. The tension in the cable is 400 N. In unit-vector notation, what are (a) the gravitational force on the beam and (b) the force on the beam from the hinge? Figure 12-82 Problem 78.

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