A sandwich board advertising sign is constructed as shown in Figure 5.39. Its mass is 6.90 kg. (a) Calculate the tension in the chain assuming no friction between the legs and the sidewalk. (b) What force is exerted by each side on the hinge?

A sandwich board advertising sign is constructed as shown in Figure 5.39. Its mass is 6.90 kg. (a) Calculate the tension in the chain assuming no friction between the legs and the sidewalk. (b) What force is exerted by each side on the hinge?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter25: Geometric Optics

Section: Chapter Questions

Problem 28CQ: If you wish to see your entire body in a flat minor (from head to toe), how tall should the minor...

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Concept explainers

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.

Question

A sandwich board advertising sign is constructed as shown in Figure 5.39. Its mass is 6.90 kg.

(a) Calculate the tension in the chain assuming no friction between the legs and the sidewalk.

(b) What force is exerted by each side on the hinge?

Hinge-
0.50m
Chain
1.30m
CG
CG
Uniform board
(CG at center)
1.10 m

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