Question

Олег решил навестить своего друга.Он вышел из дома и пошёл со скоростью 48 м/мин. Через 5 мин.вслед за ним вышел из того же дома Саша и догнал его через 4 мин.у дома друга. С какой скоростью шёл Саша ?Помогите пожалуйста!!!

Answer 1

48*5=240.
240+(4*48)=432 успел пройти олег до того как его догнал саша
432:4=108 м/мин - скорость Саши

Answer 2

Problem Analysis

Oleg and Sasha are friends who live in the same house. Oleg leaves the house and starts walking at a speed of 48 m/min. After 5 minutes, Sasha leaves the same house and catches up with Oleg after 4 minutes. We need to determine Sasha's walking speed.

Solution

To solve this problem, we can use the concept of relative speed. Relative speed is the difference in speeds between two objects moving in the same direction. In this case, Sasha catches up with Oleg, so their relative speed is equal to Sasha's speed.

Let's calculate Sasha's speed using the information given in the problem.

Calculation

1. Oleg's walking speed: 48 m/min 2. Time taken by Oleg before Sasha starts walking: 5 minutes 3. Time taken by Sasha to catch up with Oleg: 4 minutes

To find Sasha's speed, we can use the formula:

Relative Speed = Distance / Time

Since Sasha catches up with Oleg, the distance covered by Sasha is the same as the distance covered by Oleg in 4 minutes.

Let's calculate the distance covered by Oleg in 4 minutes:

Distance = Speed × Time

Distance covered by Oleg = 48 m/min × 4 min = 192 meters

Now, we can calculate Sasha's speed:

Relative Speed = Distance / Time

Sasha's speed = 192 meters / 4 minutes = 48 m/min

Therefore, Sasha's walking speed is 48 m/min.

Answer

Sasha walked with a speed of 48 m/min.

Explanation

Oleg and Sasha are friends who live in the same house. Oleg starts walking at a speed of 48 m/min. After 5 minutes, Sasha starts walking from the same house and catches up with Oleg after 4 minutes. To find Sasha's walking speed, we used the concept of relative speed. Sasha's speed is equal to the relative speed between Sasha and Oleg, which is the same as Oleg's speed. Therefore, Sasha's walking speed is 48 m/min.