Question

Скорость катера в стоячей воде -15,3 км/ч,а скорость течения реки-1,5 км/ч.катер двигался сначала вверх 2 ч а потом вниз 3ч.сколько киллометров он прошёлза это время

Answer 1

1) 15,3 - 1,5 = 13,8 км/ч скорость вверх
2) 13,8 * 2 = 27,6 км прошел верх
3) 15,3 + 1,5 = 16,8 км/ч скорость вниз
4) 16,8 * 3 = 50,4 км прошел вниз
5) 27,6 + 50,4 = 78 км прошел всего катер

Answer 2

Calculation of the Distance Traveled by the Boat

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

Given: - Speed of the boat in still water: 15.3 km/h - Speed of the river's current: 1.5 km/h - Time spent moving upstream: 2 hours - Time spent moving downstream: 3 hours

To calculate the distance traveled, we can use the formula:

Distance = Speed × Time

Let's calculate the distance traveled by the boat:

1. Distance traveled upstream: - Speed of the boat relative to the river's current when moving upstream: 15.3 km/h - 1.5 km/h = 13.8 km/h - Distance traveled upstream = Speed × Time = 13.8 km/h × 2 hours = 27.6 km

2. Distance traveled downstream: - Speed of the boat relative to the river's current when moving downstream: 15.3 km/h + 1.5 km/h = 16.8 km/h - Distance traveled downstream = Speed × Time = 16.8 km/h × 3 hours = 50.4 km

Therefore, the boat traveled a total distance of 27.6 km upstream and 50.4 km downstream during the given time.

Please note that these calculations assume a constant speed throughout the journey and do not account for factors such as changes in speed or direction.