Question

Один потяг їде з Києва до Львова з запізненням 10хв.,а інший зі Львова до Києва з запізненням 20хв. Який з цих потягів буде ближче до Києва,коли вони зустрінуться?

Answer 1

Ответ:

Коли вони зустрінуться , вони будуть на однаковій відстані як від Києва , так і від Львова.

Пошаговое объяснение:

Answer 2

Calculation of Train Meeting Point

To determine which train will be closer to Kyiv when they meet, we need to calculate the meeting point based on their respective delays.

Let's assume that the distance between Kyiv and Lviv is D kilometers.

The first train, which is traveling from Kyiv to Lviv, has a delay of 10 minutes. The second train, traveling from Lviv to Kyiv, has a delay of 20 minutes.

Since both trains are moving towards each other, their combined delay is 10 + 20 = 30 minutes.

To calculate the meeting point, we need to determine the time it takes for the trains to cover the distance between them. Since they are moving towards each other, their relative speed is the sum of their individual speeds.

Let's assume the speed of each train is V km/h. Therefore, the relative speed of the two trains is 2V km/h.

The time it takes for the trains to meet can be calculated using the formula:

Time = Distance / Relative Speed

The distance between the two trains is D kilometers, and the relative speed is 2V km/h. Therefore, the time it takes for the trains to meet is:

Time = D / (2V)

Now, let's compare the meeting time of the two trains.

Train 1 (from Kyiv to Lviv) has a delay of 10 minutes, which means it departs 10 minutes later than scheduled. Train 2 (from Lviv to Kyiv) has a delay of 20 minutes, which means it departs 20 minutes later than scheduled.

Therefore, the meeting time for Train 1 is Time + 10 minutes, and the meeting time for Train 2 is Time + 20 minutes.

To determine which train will be closer to Kyiv when they meet, we need to compare the meeting times of the two trains. The train with the earlier meeting time will be closer to Kyiv.

Unfortunately, the search results provided by You.com do not contain the necessary information to calculate the meeting point. We would need the distance between Kyiv and Lviv, as well as the speeds of the trains, to perform the calculation.

If you have access to this information, please provide it, and I will be happy to help you determine which train will be closer to Kyiv when they meet.