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Михаил_Перович
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Solution of task 13.2.23 from the collection of Kepe OE
13.2.23
On the material point of mass m = 20 kg, which moves along a horizontal straight line, the resistance force R = 0.2v2 acts. For how many seconds the speed of the point will decrease from 10 to 5 m / s? (Answer 10)
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