Question

Сколько минут понадобится второму пловцу чтобы догнать первого если расстояние между ними 70м скорость первого-45м/мин а второго 80 метров в минуту

Answer 1

80-45=35 м/мин скорость сближения
70:35=2 мин
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Answer 2

80-45=35(м/мин)
70:35=2 мин понадобится чтоб догнать
с одинаковой скоростью, со скоростью 54м в минуту сможет догнать через 10 мин
80-45=35м/мин разница в скорости 
70:35=2 мин понадобица второму пловцу чтобы догнать первого

Answer 3

Calculating the Time Needed for the Second Swimmer to Catch Up

To calculate the time needed for the second swimmer to catch up to the first swimmer, we can use the formula:

time = distance / relative speed

Where: - distance is the initial distance between the swimmers - relative speed is the difference between the speeds of the two swimmers

Given: - Distance = 70 meters - Speed of the first swimmer = 45 meters/minute - Speed of the second swimmer = 80 meters/minute

Calculating Relative Speed

The relative speed of the second swimmer with respect to the first swimmer is the difference between their speeds.

Relative speed = Speed of the second swimmer - Speed of the first swimmer = 80 meters/minute - 45 meters/minute = 35 meters/minute

Calculating Time Needed

Using the formula, we can calculate the time needed for the second swimmer to catch up to the first swimmer:

time = distance / relative speed = 70 meters / 35 meters/minute = 2 minutes

Therefore, the second swimmer will need 2 minutes to catch up to the first swimmer.