Question

Том бежит навстречу Джери.Между ними расстояние 630 метров.Через какое время они встретятся,если Том бежит со скоростью 5,3 км/час,что составляет 80 процентов скорости Джери. Может есть подобная задача.

Answer 1

5,3 км/ч = 1,47 м/с
1) 1,47 : 80 * 100 = 1,8375 м/с - скорость Джери
2) 1,47 + 1,8375 = 3,3075 м/с - скорость сближения Тома и Джери
3) 630 : 3,3075 ≈ через 190 сек = 3 мин 10 сек Том и Джери встретятся

Answer 2

Problem Statement

Tom is running towards Jerry. The distance between them is 630 meters. Tom is running at a speed of 5.3 km/h, which is 80% of Jerry's speed. We need to find out how long it will take for them to meet.

Solution

To solve this problem, we can use the formula: \[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]

First, we need to find Jerry's speed, and then we can calculate the time it will take for them to meet.

Calculations

1. Jerry's Speed: - Tom's speed = 5.3 km/h - Tom's speed = 80% of Jerry's speed - Let's calculate Jerry's speed: - Jerry's speed = \(\frac{5.3 \times 100}{80}\) km/h - Jerry's speed = 6.625 km/h

2. Time to Meet: - Now, we can calculate the time it will take for them to meet using the formula: - Time = \(\frac{\text{Distance}}{\text{Speed}}\) - Time = \(\frac{630}{6.625}\) hours - Time ≈ 95.09 minutes

Answer

It will take approximately 95.09 minutes for Tom and Jerry to meet.