Question

яхта прошла 2 часа по озеру со скоростью 58км/час ,а потом по течению реки 3 часа. скорость течения реки 2 км/час. вычисли длину маршрута яхты.

Answer 1

Calculation of the Length of the Yacht's Route

To calculate the length of the yacht's route, we need to consider the time it spent traveling at different speeds and in different directions.

Let's break down the given information:

- The yacht traveled for 2 hours on the lake at a speed of 58 km/h. - Then, it traveled for 3 hours along the river, taking into account the river's current, which flowed at a speed of 2 km/h.

To calculate the length of the yacht's route, we can use the formula:

Distance = Speed × Time

First, let's calculate the distance traveled on the lake:

Distance on the lake = Speed on the lake × Time on the lake

Distance on the lake = 58 km/h × 2 hours

Distance on the lake = 116 km

Next, let's calculate the distance traveled along the river:

Distance along the river = (Speed on the river - Speed of the current) × Time along the river

Distance along the river = (58 km/h - 2 km/h) × 3 hours

Distance along the river = 56 km/h × 3 hours

Distance along the river = 168 km

Finally, let's calculate the total length of the yacht's route:

Total distance = Distance on the lake + Distance along the river

Total distance = 116 km + 168 km

Total distance = 284 km

Therefore, the length of the yacht's route is 284 kilometers.