Question

627. Собственная скорость лодки 8,5 км/ч, а скорость течения 1,3 км/ч. Какое расстояние пройдёт лодка по течению за 3,5 ч? Какое рас-стояние пройдёт лодка против течения за 5,6 ч?​

Answer 1

Пошаговое объяснение:

8,5 + 1.3 = 9,8 км/ч

9.8*3.5= 34.3 км

85

8.5-1.3=7.2

7.2×5.6= 40.32 км

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, we can calculate the distance traveled by the boat with the current in 3.5 hours.

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

Substituting the values into the formula:

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

Calculating the distance:

Distance with the current = 9.8 km/h x 3.5 hours

Distance with the current = 34.3 km

Therefore, the boat will travel a distance of 34.3 km with the current in 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, we can calculate the distance traveled by the boat against the current in 5.6 hours.

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

Substituting the values into the formula:

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

Calculating the distance:

Distance against the current = 7.2 km/h x 5.6 hours

Distance against the current = 40.32 km

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

Please note that these calculations assume a constant speed and do not take into account other factors such as wind or waves.