Question

Скорость катера в стоячей воде 19,3 км/ч а скорость течения реки 2,4км/ч. Скакой скоростью плывет катер:1)по течению реки2)против течения реки?дам 5о баллов

Answer 1

1) По течению реки:
19,3+2,4=21,7 км/ч
2) Против течения 
19,3-2,4=16,9 км/ч

Answer 2

Calculating the Speed of the Boat:

To calculate the speed of the boat in different scenarios, we need to consider the speed of the boat in still water and the speed of the river current.

Given: - Speed of the boat in still water: 19.3 km/h - Speed of the river current: 2.4 km/h

Speed of the Boat with the River Current:

When the boat is moving in the same direction as the river current, the speed of the boat relative to the ground is the sum of the speed of the boat in still water and the speed of the river current.

To calculate the speed of the boat with the river current, we add the speed of the boat in still water to the speed of the river current:

Speed of the boat with the river current = Speed of the boat in still water + Speed of the river current

Substituting the given values:

Speed of the boat with the river current = 19.3 km/h + 2.4 km/h = 21.7 km/h

Therefore, the boat will be moving at a speed of 21.7 km/h when traveling with the river current.

Speed of the Boat against the River Current:

When the boat is moving against the river current, the speed of the boat relative to the ground is the difference between the speed of the boat in still water and the speed of the river current.

To calculate the speed of the boat against the river current, we subtract the speed of the river current from the speed of the boat in still water:

Speed of the boat against the river current = Speed of the boat in still water - Speed of the river current

Substituting the given values:

Speed of the boat against the river current = 19.3 km/h - 2.4 km/h = 16.9 km/h

Therefore, the boat will be moving at a speed of 16.9 km/h when traveling against the river current.

I hope this helps! Let me know if you have any further questions.