Dievsky V.A. - Solution of problem D1 variant 4 (D1-04)
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D1-04 Dievskiy
A boat with a mass m = 100 kg is given the initial velocity v0 = 4 m / s. When moving to the boat, a drag force acts proportional to the square of the speed R = 5v2. Determine, during what time the speed of the boat will be reduced by half.
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