Question

Из двух пунктов, расстояние между которыми 30 километров, выехали одновременно в одном направлении два мотоциклиста. Cкорость первого 40 км в час, скорость второго 50 км в час. через сколько часов второй догонит первого?

Answer 1

Скорость сближения 50-40=10 км/ч
нагнать надо 30км  30:10=3 часа

Answer 2

Calculating When the Second Motorcyclist Overtakes the First

To calculate when the second motorcyclist will overtake the first, we can use the formula:

time = distance / relative speed

Where: - distance = distance between the two motorcyclists (30 km) - relative speed = speed of the second motorcyclist - speed of the first motorcyclist

Using the given speeds: - Speed of the first motorcyclist = 40 km/h - Speed of the second motorcyclist = 50 km/h

We can calculate the relative speed and then use it to find the time it takes for the second motorcyclist to overtake the first.

Calculation

Relative speed = 50 km/h - 40 km/h = 10 km/h

time = 30 km / 10 km/h = 3 hours

Therefore, the second motorcyclist will overtake the first after 3 hours.