Question

Собственная скорость лодки 8,5 км/ч , а скорость течения 1,3 км/ч. Какое расстояние пройдет лодка по течению за 3,5 ч?Какое расстояние пройдет лодка против течения за 5,6 ч?

Answer 1

8,5 + 1,3 = 9,8 км/ч- скорость лодки по течению.
9,8 * 3,5 = 34,3км - пройдёт по течению.
8,5 - 1,3 = 7,2 км/ч - скорость против течения.
7,2 * 5,6 =40,32 км - против течения.

Answer 2

Calculation of Distance Traveled with the Current

To calculate the distance traveled by the boat with the current, we can use the formula:

Distance = Speed x Time

Given that the boat's speed is 8.5 km/h and the current's speed is 1.3 km/h, and the time is 3.5 hours, we can substitute these values into the formula to find the distance traveled:

Distance = (Boat's speed + Current's speed) x Time

Distance = (8.5 km/h + 1.3 km/h) x 3.5 hours

Calculating this, we get:

Distance = 9.8 km/h x 3.5 hours

Distance = 34.3 km

Therefore, the boat will travel a distance of 34.3 km with the current over a period of 3.5 hours.

Calculation of Distance Traveled against the Current

To calculate the distance traveled by the boat against the current, we can use the same formula:

Distance = Speed x Time

Given that the boat's speed is 8.5 km/h and the current's speed is 1.3 km/h, and the time is 5.6 hours, we can substitute these values into the formula to find the distance traveled:

Distance = (Boat's speed - Current's speed) x Time

Distance = (8.5 km/h - 1.3 km/h) x 5.6 hours

Calculating this, we get:

Distance = 7.2 km/h x 5.6 hours

Distance = 40.32 km

Therefore, the boat will travel a distance of 40.32 km against the current over a period of 5.6 hours.