Cable L. As shown in the figure, a uniform beam of length L is supported at angle 9 by a horizontal cable and a wall hinge. The tension in the cable is T. In terms of L, O,g. T, and numerical constants, as needed, Cable A) draw forces acting on the beam B) find the gravitational force on the beam in unit-vector notation. C) find the force on the beam from the hinge in unit-vector notation. D) Then, the cable is cut and the beam is no longer in equilibrium. Find the magnitude and direction of the initial angular acceleration of the beam about the hinge?

Cable L. As shown in the figure, a uniform beam of length L is supported at angle 9 by a horizontal cable and a wall hinge. The tension in the cable is T. In terms of L, O,g. T, and numerical constants, as needed, Cable A) draw forces acting on the beam B) find the gravitational force on the beam in unit-vector notation. C) find the force on the beam from the hinge in unit-vector notation. D) Then, the cable is cut and the beam is no longer in equilibrium. Find the magnitude and direction of the initial angular acceleration of the beam about the hinge?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 39P: The forearm shown below is positioned at an angle with respect to the upper arm , and a 5.0- kg...

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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.

Question

Cable
L
As shown in the figure, a uniform beam of length L is supported at angle 9 by a
horizontal cable and a wall hinge. The tension in the cable is T. In terms of L, O,g. T,
and numerical constants, as needed,
Cable
A) draw forces acting on the beam
B) find the gravitational force on the beam in unit-vector notation.
C) find the force on the beam from the hinge in unit-vector notation.
D) Then, the cable is cut and the beam is no longer in equilibrium. Find the
magnitude and direction of the initial angular acceleration of the beam about the
hinge?

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Step 2: Draw FBD of the beam

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Step 3: Find gravitational force on the beam

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Step 4: Find force on the beam from the hinge

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Step 5: Calculate initial angular acceleration of beam

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