Question
Asked Feb 9, 2019
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10. What is the tension in a crane's cable when it is used to lower a 1100 kg box vertically downward at an acceleration of 0.40 m/s²?

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Expert Answer

Step 1

Given. 

mass of the box, m= 1100 kg

down ward acceleration, a = 0.4 m/sec2   

Gravitational affeleration, g = 9.8 m/sec2   

Step 2

free body diagram is as shown.

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Step 3

apply force balance euqations:

...

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