Question

Из пунктов A и B, расстояние между которыми 676 км, одновременно навстречу друг другу выехали автомобилист и мотоциклист. Скорость автомобиля равна 98 км/ч, а скорость мотоцикла равна 71 км/ч. Узнай, через какое время после начала движения автомобилист и мотоциклист могут встретиться?​

Answer 1

Пошаговое объяснение:

1) 98+71=169 км/ч скорость сближения

2) t=S/V

t=676:169=4 ч

Ответ : через 4 часа

Answer 2

Problem Analysis

We are given that two vehicles, an automobile and a motorcycle, start simultaneously from points A and B, which are 676 km apart. The automobile has a speed of 98 km/h, and the motorcycle has a speed of 71 km/h. We need to find out how long it will take for the two vehicles to meet.

Solution

To find the time it takes for the two vehicles to meet, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the sum of the speeds of the two vehicles, as they are moving towards each other.

Let's calculate the time it takes for the two vehicles to meet.

Calculation

The distance between points A and B is 676 km.

The speed of the automobile is 98 km/h.

The speed of the motorcycle is 71 km/h.

The relative speed of the two vehicles is the sum of their speeds: 98 km/h + 71 km/h = 169 km/h.

Using the formula, we can calculate the time it takes for the two vehicles to meet:

Time = Distance / Relative Speed

Time = 676 km / 169 km/h

Time = 4 hours

Therefore, the automobile and the motorcycle will meet after 4 hours of starting their journey.

Answer

After starting their journey, the automobile and the motorcycle will meet after 4 hours.

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