Question

Катер двигался 0,2 г по течению реки и 0,5 ч против течения реки .Какой путь преодолел катер за это время ,если собственная скорость катера 35,2 км/г,а скорость течения реки 2,6

Answer 1

S = v * t - формула пути
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1) 35,2 + 2,6 = 37,8 (км/ч) - скорость катера по течению реки;
2) 37,8 * 0,2 = 7,56 (км) - путь катера по течению;
3) 35,2 - 2,6 = 32,6 (км/ч) - скорость катера против течения реки;
4) 32,6 * 0,5 = 16,3 (км) - путь катера против течения;
5) 7,56 + 16,3 = 23,86 (км) - весь путь катера.
Выражение: (35,2 + 2,6) * 0,2 + (35,2 - 2,6) * 0,5 = 23,86
Ответ: 23,86 км.

Answer 2

Calculation of the Boat's Distance Traveled

To calculate the distance traveled by the boat, we need to consider the boat's own speed and the speed of the river's current.

Given: - Boat's own speed: 35.2 km/h - Speed of the river's current: 2.6 km/h - Time spent traveling with the current: 0.2 hours - Time spent traveling against the current: 0.5 hours

To calculate the distance traveled with the current, we can use the formula: distance = speed × time.

Let's calculate the distance traveled with the current first:

Distance traveled with the current = (Boat's own speed + Speed of the river's current) × Time spent traveling with the current

Distance traveled with the current = (35.2 km/h + 2.6 km/h) × 0.2 hours

Distance traveled with the current = 37.8 km/h × 0.2 hours

Distance traveled with the current = 7.56 km

Now, let's calculate the distance traveled against the current:

Distance traveled against the current = (Boat's own speed - Speed of the river's current) × Time spent traveling against the current

Distance traveled against the current = (35.2 km/h - 2.6 km/h) × 0.5 hours

Distance traveled against the current = 32.6 km/h × 0.5 hours

Distance traveled against the current = 16.3 km

To find the total distance traveled by the boat, we add the distances traveled with and against the current:

Total distance traveled = Distance traveled with the current + Distance traveled against the current

Total distance traveled = 7.56 km + 16.3 km

Total distance traveled = 23.86 km

Therefore, the boat traveled a total distance of approximately 23.86 kilometers during the given time, considering its own speed and the speed of the river's current.