Question

Определите начальную координату тела, если при движении со скоростью 54кмч, через 3 мин от гачала движения оно оказалось в точке с координатой 2800 м

Answer 1

54км/ч=15м/с
3мин=3×60=180с
Путь
S=vt=15×180=2700м
х0=x-S
x0=2800-2700=100м
Ответ 100м

Answer 2

Finding the Initial Coordinate of the Body

To find the initial coordinate of the body, we can use the formula:

\[ \text{Distance} = \text{Speed} \times \text{Time} \]

Given: - Speed = 54 km/h - Time = 3 minutes

First, we need to convert the time from minutes to hours: \[ 3 \text{ minutes} = 3/60 \text{ hours} = 0.05 \text{ hours} \]

Now, we can calculate the distance traveled using the given speed and time: \[ \text{Distance} = 54 \text{ km/h} \times 0.05 \text{ hours} = 2.7 \text{ km} \]

So, the body has traveled 2.7 km from the initial point.

To find the initial coordinate, we subtract the distance traveled from the final coordinate: \[ \text{Initial Coordinate} = 2800 \text{ m} - 2700 \text{ m} = 100 \text{ m} \]

Therefore, the initial coordinate of the body is 100 m.