Question

Когда лыжник отъехал от базы на 10.8 км вслед за ним отправиласт собачья упряжка.Скорость лыжника 9.4км/ч а скорость упряжки 22.9км/ч.Через сколько времени упряжка догонит лыжника?

Answer 1

Для начала найдем разницу в скоростях:
22,9-9,4=13,5 км/ч
Расстояние на момент выезда упряжки составляет 10,8 км.
По формуле t=S/v
находим t=10,8/13,5=0,8 часов=0,8*60 минут=48 минут

Answer 2

To find out when the dog sled will catch up to the skier, we can use the formula:

Time = Distance / Relative Speed

where the distance is the initial distance between the skier and the dog sled, and the relative speed is the difference in speed between the dog sled and the skier.

Given that the skier has traveled 10.8 km and the skier's speed is 9.4 km/h, and the dog sled's speed is 22.9 km/h, we can calculate the time it takes for the dog sled to catch up to the skier.

Calculation:

Distance = 10.8 km Relative Speed = 22.9 km/h - 9.4 km/h = 13.5 km/h

Time = Distance / Relative Speed Time = 10.8 km / 13.5 km/h

To find the time, we divide the distance by the relative speed:

Time = 0.8 hours

Therefore, the dog sled will catch up to the skier in approximately 0.8 hours.

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