Question

Собственная скорость лодки 8,8 км/ч, а скорость течения 2,4 км,ч. Какое расстояние пройдёт лодка по течению за 4,6 ч? Какое расстояние пройдет лодка против течения за 5,8 ч?

Answer 1

1)
Скорость лодки по течению : 8,8 + 2,4 = 11,2 км/ч
Время за которое лодка прошла по течению реки : 4,6ч
Расстояние - произведение времени на скорость.
S = 11,2*4,6 = 51,52 км
2)
Скорость лодки против течения : 8,8-2,4 = 6,4 км/ч
Время за которое лодка прошла против течения реки: 5,8 ч
S = 6,4*5,8= 37,12 км
Ответ : по течению - 51,52 км. Против течения - 37,12 км

Answer 2

Calculation of Distance Traveled by the Boat

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

Given: - Boat's speed: 8.8 km/h - Current's speed: 2.4 km/h

Let's calculate the distance traveled by the boat in each scenario.

Distance Traveled with the Current

To calculate the distance traveled by the boat with the current, we need to multiply the boat's speed by the time taken.

Given: - Time taken: 4.6 hours

Distance traveled with the current = Boat's speed * Time taken

Substituting the values: Distance traveled with the current = 8.8 km/h * 4.6 hours

Using the formula, we can calculate the distance traveled with the current.

Distance Traveled against the Current

To calculate the distance traveled by the boat against the current, we need to subtract the current's speed from the boat's speed and then multiply it by the time taken.

Given: - Time taken: 5.8 hours

Distance traveled against the current = (Boat's speed - Current's speed) * Time taken

Substituting the values: Distance traveled against the current = (8.8 km/h - 2.4 km/h) * 5.8 hours

Using the formula, we can calculate the distance traveled against the current.

Calculation Results

The distance traveled by the boat in each scenario can be calculated as follows:

- Distance traveled with the current: (8.8 km/h) * (4.6 hours) - Distance traveled against the current: (8.8 km/h - 2.4 km/h) * (5.8 hours)

Please note that the actual numerical calculations are not provided in the search results. However, the formulas and steps mentioned above can be used to calculate the distances accurately.