Question

Из пункта А в пункт В, расположенный ниже по течению реки, отправился плот.Одновременно с ним из пункта А вышел катер. Дойдя до В, катер сразу же развернулся и пошел назад. Какую часть пути от А до В проплывет плот к моменту встречи с катером, если скорость катера в стоячей воде втрое больше скорости течения реки

Answer 1

1/2. скорость катера по течения 4х а плота х => плот проплывет 1/4 к тому времени когда катер будет в В, а останется пройти 3/4 Скорость катера против течения 2х => совместная скорость 3х => плот проплывет 1/3*3/4=1/4 1/4+1/4=1/2

Answer 2

Calculating the Distance Traveled by the Raft

To calculate the distance traveled by the raft from point A to point B before meeting the motorboat, we can use the following approach:

1. Calculate the Speed of the Raft Relative to the River: - The speed of the raft relative to the river can be calculated using the formula: \[ \text{Speed of raft relative to river} = \text{Speed of raft in still water} - \text{Speed of river current} \]

2. Calculate the Time Taken by the Motorboat to Meet the Raft: - The time taken by the motorboat to meet the raft can be calculated using the formula: \[ \text{Time taken} = \frac{\text{Distance between A and B}}{\text{Speed of motorboat relative to river}} \]

3. Calculate the Distance Traveled by the Raft: - The distance traveled by the raft can be calculated using the formula: \[ \text{Distance traveled by raft} = \text{Speed of raft relative to river} \times \text{Time taken} \]

Applying the Given Information

From the given information, we know that the speed of the motorboat in still water is three times greater than the speed of the river current. However, the specific numerical values for these speeds are not provided in the search results.

To proceed with the calculation, we would need the numerical values for the speeds of the motorboat and the river current. Unfortunately, the search results do not provide this specific information. Therefore, without the numerical values, it is not possible to calculate the exact distance traveled by the raft before meeting the motorboat.

If you have the specific numerical values for the speeds of the motorboat and the river current, please provide them so that I can assist you further in calculating the distance traveled by the raft.