Question

Первые 2 часа катер двигался со скоростью 20 км/ч а следующие 30 мин со скоростью 40 км/ч.Обозначте путь который прошёл катер за всё время движения

Answer 1

2 * 20 = 40. 1/2 * 40 = 20. 40 + 20 = 60.

Answer 2

Calculation of the Distance Traveled by the Boat

To calculate the distance traveled by the boat, we need to add up the distances covered during the two different time intervals.

The boat traveled at a speed of 20 km/h for the first 2 hours. To calculate the distance covered during this time, we can use the formula:

Distance = Speed × Time

Substituting the given values, we have:

Distance1 = 20 km/h × 2 hours

Next, the boat traveled at a speed of 40 km/h for the next 30 minutes. To calculate the distance covered during this time, we need to convert the time to hours:

Time2 = 30 minutes ÷ 60 minutes/hour = 0.5 hours

Using the same formula as before, we have:

Distance2 = 40 km/h × 0.5 hours

To find the total distance traveled by the boat, we add the distances covered during the two time intervals:

Total Distance = Distance1 + Distance2

Let's calculate the distances:

Distance1 = 20 km/h × 2 hours = 40 km

Distance2 = 40 km/h × 0.5 hours = 20 km

Total Distance = 40 km + 20 km = 60 km

Therefore, the boat traveled a total distance of 60 km during the entire duration of its journey.