On the bench Zhukovsky man standing and holding in his

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Uploaded: 09.01.2014
Content: 10016.tif (48,01 kB)
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Description

On the bench Zhukovsky man standing and holding in his outstretched hands weights mass m = 5 kg each. The distance from each weight bench to the axis L1 = 70 cm. Bench rotates at n1 = 1, c ^ -1. How will the speed of the bench, and what kind of work will make the person if he will tighten his hands so that the distance of each weight from the axis decreases to L2 = 20 cm?

Additional information

Task 10016. Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.

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