How does the tension in the string change as the masses start to move? Or does it?

Refrigeration and Air Conditioning Technology (MindTap Course List)
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ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter2: Matter And Energy
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Problem 12RQ: The specific volume of red brass is 0.001865 ft3/lb. Whatwould be its density?
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How does the tension in the string change as the masses start to move? Or does it?

Expert Solution
Step 1

Consider pulley mass system as shown in the figure below,

Mechanical Engineering homework question answer, step 1, image 1

Scenario 1

Assume the pulley does not rotate and therefore the mass does not move downwards.

Therefore,

Tension acting on the string (T)=Weight of the massT1=mg

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