Question

Велосипедист отправился догонять пешехода,когда расстояние между ними составляло 36 км.Через сколько часов он догонит пешехода,если скорость велосипедиста 16 км/ч, а скорость пешехода 4 км/ч?

Answer 1

Найдем разность скоростей 16-4=12
найдем за сколько велосипедист догонит пешехода
36/12=3
ответ за 3 часа

Answer 2

1)16-4=12км/ч скорость сближения
2) 36:12=3ч

Answer 3

Calculating the Time to Overtake a Pedestrian

To calculate the time it takes for the cyclist to overtake the pedestrian, we can use the formula:

time = distance / relative speed

Where: - distance = initial distance between the cyclist and the pedestrian - relative speed = speed of the cyclist - speed of the pedestrian

Given: - initial distance = 36 km - speed of the cyclist = 16 km/h - speed of the pedestrian = 4 km/h

We can calculate the relative speed and then use it to find the time it takes for the cyclist to overtake the pedestrian.

Calculating Relative Speed

The relative speed is the difference between the speed of the cyclist and the speed of the pedestrian.

Relative speed = speed of the cyclist - speed of the pedestrian Relative speed = 16 km/h - 4 km/h Relative speed = 12 km/h

Calculating Time to Overtake

Using the formula, time = distance / relative speed, we can calculate the time it takes for the cyclist to overtake the pedestrian.

time = 36 km / 12 km/h time = 3 hours Therefore, the cyclist will overtake the pedestrian in 3 hours.