Dievsky V.A. - Solution of task D1 variant 12 (D1-12)
Seller: Михаил_Перович
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Product description
D1-12 Dievskiy
A skier weighing m = 70 kg descends without the initial speed along a slope making an angle α = 30 ° with the horizon, not pushing with sticks. The length of the descent is l = 100 m, the coefficient of sliding friction of skis about snow is f = 0.1. The strength of air resistance is proportional to the square of the velocity R = 0.4v2. Determine the speed of the skier at the end of the descent.
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