I don\'t even know where to start can somebody head me off in theright direction

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I don't even know where to start can somebody head me off in theright direction?
The cable cars in San Francisco are pulled along their tracksby an underground steel cable that moves along at 9.5 mph. Thecable is driven by large motors at a central power station andextends, via an intricate pulley arrangement, for several milesbeneath the city streets. The length of a cable stretches by up to100 ft during its lifetime. To keep the tension constant, the cablepasses around a 1.5-m-diameter "tensioning pulley" that rolls backand forth on rails, as shown in the figure. A 2000 kg block isattached to the tensioning pulley's cart, via a rope and pulley,and is suspended in a deep hole
see picturevvv knight_Figure_08_14.jpg

What is the tensionin the cable car's cable?

The cable cars in San Francisco are pulled along their tracksby an underground steel cable that moves along at 9.5 mph. Thecable is driven by large motors at a central power station andextends, via an intricate pulley arrangement, for several milesbeneath the city streets. The length of a cable stretches by up to100 ft during its lifetime. To keep the tension constant, the cablepasses around a 1.5-m-diameter "tensioning pulley" that rolls backand forth on rails, as shown in the figure. A 2000 kg block isattached to the tensioning pulley's cart, via a rope and pulley,and is suspended in a deep hole
see picturevvv knight_Figure_08_14.jpg

What is the tensionin the cable car's cable?

Explanation / Answer

sorry! i didnt realize this book was also in a textbook. Knight Physics chapter 7number 15

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