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Task 10523.
In the spring gun spring is compressed to 10 cm. In her platoon tightened to 20 cm. With what speed will depart from guns boom weight of 30 g, if the spring constant of 144 N / m.
Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
If you have any questions to address, please. I´ll try to help.