Задача id16389

The sled slides down an ice mountain of height h = 1.5 m and length l = 2.5 m, smoothly turning into a horizontal ice surface, along which they slide further until they stop. How long will it take the sled to slide on horizontal ice if the coefficient of friction is f = 0.04? At what distance L from the foot of the ice mountain will the sled stop?

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