Question

Из посёлка в 12 часов дня выехали два велосипедиста.Скорость первого 180м\мин, второго 210м\мин. Какое расстояние будет между ними, когда первый проедет 720 км? Заранее спасибо!

Answer 1

180 км/ч =3000 м/мин
t=S/v 720 м/3000 м/мин=0,24
0,24*210 м=50,4 м
720 м-50,4 м=669,6 метром (расстояние между велосипедистами )

Answer 2

Calculation of Distance between Two Cyclists

To calculate the distance between two cyclists, we need to determine the time it takes for the first cyclist to travel 720 km at a speed of 180 m/min. We can then use this time to calculate the distance the second cyclist has traveled at a speed of 210 m/min.

Let's break down the calculation step by step:

1. Calculate the time it takes for the first cyclist to travel 720 km: - Speed of the first cyclist: 180 m/min - Distance traveled by the first cyclist: 720 km = 720,000 m - Time taken by the first cyclist: distance / speed = 720,000 m / 180 m/min = 4000 min

2. Calculate the distance the second cyclist has traveled in the same time: - Speed of the second cyclist: 210 m/min - Distance traveled by the second cyclist: speed * time = 210 m/min * 4000 min = 840,000 m

Therefore, when the first cyclist completes a distance of 720 km, the second cyclist will be approximately 840,000 meters ahead.

Note: It's important to mention that this calculation assumes that both cyclists maintain a constant speed throughout the entire journey.

Answer 3

Problem Analysis

We have two cyclists who start from a village at 12:00 PM. The first cyclist has a speed of 180 m/min, and the second cyclist has a speed of 210 m/min. We need to find the distance between them when the first cyclist has traveled 720 km.

Solution

To find the distance between the two cyclists, we need to determine the time it takes for the first cyclist to travel 720 km. We can then use this time to calculate the distance traveled by the second cyclist.

Let's calculate the time it takes for the first cyclist to travel 720 km:

1. Convert the speed of the first cyclist from m/min to km/h: - 180 m/min = 180 * 60 m/h = 10800 m/h - 10800 m/h = 10.8 km/h

2. Calculate the time it takes for the first cyclist to travel 720 km: - Time = Distance / Speed - Time = 720 km / 10.8 km/h = 66.67 hours

Now that we know the time it takes for the first cyclist to travel 720 km, we can calculate the distance traveled by the second cyclist during this time:

1. Convert the speed of the second cyclist from m/min to km/h: - 210 m/min = 210 * 60 m/h = 12600 m/h - 12600 m/h = 12.6 km/h

2. Calculate the distance traveled by the second cyclist: - Distance = Speed * Time - Distance = 12.6 km/h * 66.67 hours = 840 km

Therefore, when the first cyclist has traveled 720 km, the distance between them will be 840 km.

Answer: The distance between the two cyclists when the first cyclist has traveled 720 km is 840 km.