Question

Составь выражения: Велосипедист догоняет пешехода. Сейчас между ними n км. Скорость велосипедиста х м/мин, а скорость пешехода у м/мин. А) на каком расстоянии от пешехода будет велосипедист через 5 мин после начала движения? Б) через сколько минут велосипедист догонит пешехода?

Answer 1

Велосипедист догоняет пешехода. Сейчас между ними 2 км. Скорость велосипедиста 10 м/мин, а скорость пешехода 3 м/мин.
А)5 км
Б)Через 25 мин

Answer 2

Given Information

The distance between the cyclist and the pedestrian is n kilometers. The cyclist's speed is x m/min, and the pedestrian's speed is y m/min.

Calculating the Distance After 5 Minutes

To calculate the distance between the cyclist and the pedestrian after 5 minutes, we can use the formula: Distance = Speed * Time

Given that the cyclist's speed is x m/min, the distance covered by the cyclist after 5 minutes is 5 * x. Therefore, the distance between the cyclist and the pedestrian after 5 minutes is n - 5x kilometers.

Calculating the Time to Overtake the Pedestrian

To calculate the time it takes for the cyclist to overtake the pedestrian, we can use the formula: Time = Distance / Relative Speed

The relative speed is the difference between the cyclist's speed and the pedestrian's speed, which is x - y m/min. Therefore, the time it takes for the cyclist to overtake the pedestrian is n / (x - y) minutes.

So, to summarize: A) The distance between the cyclist and the pedestrian after 5 minutes is n - 5x kilometers. B) The time it takes for the cyclist to overtake the pedestrian is n / (x - y) minutes.