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# Solved: A sandwich board advertising sign is constructed ISBN: 9781938168000 42

## Solution for problem 14PE Chapter 9

College Physics | 1st Edition

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Problem 14PE

A sandwich board advertising sign is constructed as shown in Figure 9.35. The sign’s mass is 8.00 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? Step-by-Step Solution:
Step 3 of 6

Problem 14PE

Solution 14 PE

Step1 of 6:

In this question, we need to find the tension in the chain

In part (b) we need to find the force exerted by each side on the hinge

Data given

Mass of sign Let us consider the given figure Step 2 of 6:

From the figure above, we understand, there are three forces acting on the system

Weight is acting downward

Normal for left leg and normal force for right are acting above from the ground

The tension and hinge exerts internal forces, which cancel each other

Thus we have net force on the system as using equilibrium conditions Step 3 of 6:

The normal forces are equal, due to symmetry

Hence we have normal force as We have And Substituting values we get  Now we shall consider a free body diagram for one side figure to find the tension in the chain and force due to hinge on one side

We have From the figure we have    We have for one side

The forces  Since we the system is in equilibrium, it should satisfy equilibrium conditions and Thus we get the equations as  And Step 4 of 6

Step 5 of 6

##### ISBN: 9781938168000

College Physics was written by and is associated to the ISBN: 9781938168000. The full step-by-step solution to problem: 14PE from chapter: 9 was answered by , our top Physics solution expert on 07/07/17, 04:39PM. The answer to “A sandwich board advertising sign is constructed as shown in Figure 9.35. The sign’s mass is 8.00 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?” is broken down into a number of easy to follow steps, and 45 words. This textbook survival guide was created for the textbook: College Physics , edition: 1. Since the solution to 14PE from 9 chapter was answered, more than 2709 students have viewed the full step-by-step answer. This full solution covers the following key subjects: sign, Friction, board, calculate, Chain. This expansive textbook survival guide covers 34 chapters, and 3125 solutions.

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