Question

На моторной лодке турист плыл 3 часа по озеру а потом еще 5 часов по реке которая впадает в это озеро собственная скорость моторной лодки 8 км в час.Скорость течения реки 2 км в час. Какое расстояние преодалел турист СРОЧНО(((

Answer 1

8*3=24(км)прошла лодка по озеру
8-2=6(км/ч) скорость лодки против течения реки
6*5=30(км)прошла лодка по реке
24+30=54(км) преодолел турист за все время

ответ:54 км.

Answer 2

Calculation of Distance Traveled

To calculate the distance traveled by the tourist on the motorboat, we need to consider the time spent on the lake and the time spent on the river, as well as the speed of the motorboat and the speed of the river current.

Given: - Time spent on the lake: 3 hours - Time spent on the river: 5 hours - Speed of the motorboat: 8 km/h - Speed of the river current: 2 km/h

To calculate the distance traveled on the lake, we can use the formula: distance = speed * time. - Distance on the lake = 8 km/h * 3 hours = 24 km.

To calculate the distance traveled on the river, we need to consider the effect of the river current. The effective speed of the motorboat on the river will be the difference between the speed of the motorboat and the speed of the river current. - Effective speed on the river = Speed of the motorboat - Speed of the river current = 8 km/h - 2 km/h = 6 km/h. - Distance on the river = Effective speed on the river * Time spent on the river = 6 km/h * 5 hours = 30 km.

Therefore, the total distance traveled by the tourist is the sum of the distances on the lake and the river: - Total distance traveled = Distance on the lake + Distance on the river = 24 km + 30 km = 54 km.

The tourist traveled a total distance of 54 kilometers.