An 8-m-long beam, weighing 14,700 N, is hinged to a wall and supported by a light rope that is attached 2.0 m from the free end of the beam. If the beam is supported at an angle of 30.0° above the horizontal, (a) find the tension in the rope and (b) the reaction force of the wall on the beam. 40.0° 2.0 m 30.0°

An 8-m-long beam, weighing 14,700 N, is hinged to a wall and supported by a light rope that is attached 2.0 m from the free end of the beam. If the beam is supported at an angle of 30.0° above the horizontal, (a) find the tension in the rope and (b) the reaction force of the wall on the beam. 40.0° 2.0 m 30.0°

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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

An 8-m-long beam, weighing
14,700 N, is hinged to a wall and
supported by a light rope that is
attached 2.0 m from the free end
of the beam. If the beam is
supported at an angle of 30.0°
above the horizontal, (a) find the
tension in the rope and (b) the
reaction force of the wall on the
beam.
40.0°
2.0 m
30.0°

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Step 2: Draw FBD of the beam

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Step 3: Find tension in the rope

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Step 4: Balance horizontal and vertical forces on the beam

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Step 5: Find reaction force of the wall on the beam

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