Question

Гоночная машина первый участок дороги в 200 км проехала за 1 ч. Второй участок в 30 км машина проехала за 15 мин. На каком из учачтков машина двигалась быстрее? Реши задачу и запиши ответ.

Answer 1

 Общаться в чатеS1=200 км,       t1=1час,    S2=30 км,   t2=15 мин=1/4часа.V1=S1/t1=200/1=200 км/ч      V2=S2/t2= 30/(1/4)=120 км/чV1 больше V2, на 1 участке машина двигалась быстрее.

Answer 2

Problem Analysis

We are given two sections of a road and the time it takes for a racing car to travel each section. We need to determine on which section the car was moving faster.

Solution

To compare the speed of the car on each section, we need to calculate the average speed for each section. Average speed is calculated by dividing the distance traveled by the time taken.

Let's calculate the average speed for each section.

Calculation

1. First section: - Distance: 200 km - Time: 1 hour - Average speed = Distance / Time = 200 km / 1 hour = 200 km/h.

2. Second section: - Distance: 30 km - Time: 15 minutes - Convert minutes to hours: 15 minutes = 15/60 hours = 0.25 hours. - Average speed = Distance / Time = 30 km / 0.25 hours = 120 km/h.

Answer

The car was moving faster on the first section of the road, where it had an average speed of 200 km/h, compared to the second section where it had an average speed of 120 km/h.

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