Question

Велосипедист и мотоциклист выехали одновременно навстречу друг другу из двух посёлков. Велосипедист ехал со скоростью 12 км/ч, а мотоциклист - 40 км/ч. 1)Найди скорость сближения велосипедиста и мотоциклиста. 2)На сколько километров велосипедист и мотоциклист приблизились друг к другу за 2 ч.

Answer 1

Мне кажется тут ответ получить не возможно, т.к. нужно хотя бы расстояние между поселками

Answer 2

Problem Analysis

We are given that a cyclist and a motorcyclist start simultaneously from two different villages and are moving towards each other. The cyclist is traveling at a speed of 12 km/h, and the motorcyclist is traveling at a speed of 40 km/h. We need to find the following: 1. The speed at which the cyclist and the motorcyclist are approaching each other. 2. The distance by which the cyclist and the motorcyclist have approached each other after 2 hours.

Solution

To solve this problem, we can use the formula:

Distance = Speed × Time

Let's calculate the required values step by step.

1) Speed of Approach

The speed at which the cyclist and the motorcyclist are approaching each other is the sum of their individual speeds. Therefore, the speed of approach is:

Speed of Approach = Speed of Cyclist + Speed of Motorcyclist

Substituting the given values:

Speed of Approach = 12 km/h + 40 km/h

Now, let's calculate the value:

Speed of Approach = 52 km/h

2) Distance of Approach after 2 hours

To find the distance by which the cyclist and the motorcyclist have approached each other after 2 hours, we can use the formula:

Distance = Speed × Time

For the cyclist: Distance of Cyclist = Speed of Cyclist × Time

Substituting the given values: Distance of Cyclist = 12 km/h × 2 hours

Now, let's calculate the value: Distance of Cyclist = 24 km

For the motorcyclist: Distance of Motorcyclist = Speed of Motorcyclist × Time

Substituting the given values: Distance of Motorcyclist = 40 km/h × 2 hours

Now, let's calculate the value: Distance of Motorcyclist = 80 km

The total distance by which the cyclist and the motorcyclist have approached each other after 2 hours is the sum of their individual distances:

Total Distance of Approach = Distance of Cyclist + Distance of Motorcyclist

Substituting the calculated values: Total Distance of Approach = 24 km + 80 km

Now, let's calculate the value: Total Distance of Approach = 104 km

Summary

Based on the calculations, we can conclude the following: 1. The speed at which the cyclist and the motorcyclist are approaching each other is 52 km/h. 2. The distance by which the cyclist and the motorcyclist have approached each other after 2 hours is 104 km.

Please let me know if I can help you with anything else.