Question

ПОЧЕМУ ТАКОГО НИГДЕ НЕТУ.... Пароход, двигаясь против течения со скоростью 16 км/ч, проходит расстояние между двумя пристанями за 4 ч. За какое время он пройдёт то же расстояние по течению, если скорость парохода по течению равна 5,9 м/с? Ответ: время равно ч. (Результат округляй до десятых!)

Answer 1

Ответ:

3.0 ч

Объяснение:

v1=16 км/ч     t1=4 ч     v1=21.24 км/ч     t2=?

===

s=v1*t1=v2*t2

t2=v1*t1/v2=16*4/21.24=3.0 ч

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Answer 2

Ответ: 3,01ч

Объяснение:

Дано:

V1=16км/ч

t1=4ч

V2=5,9м/с=21,24км/ч

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t2-?

t2=V1*t1/V2=16*4/21,24=3,01ч

Answer 3

Problem Analysis

We are given the following information: - The steamship is moving against the current with a speed of 16 km/h and covers a certain distance between two piers in 4 hours. - We need to find the time it will take for the steamship to cover the same distance with the current, given that the speed of the steamship with the current is 5.9 m/s.

Solution

To solve this problem, we can use the formula:

Time = Distance / Speed

Let's calculate the time it takes for the steamship to cover the distance against the current:

Time against current = Distance / Speed against current

Given that the speed against the current is 16 km/h and the time is 4 hours, we can rearrange the formula to solve for distance:

Distance = Speed against current * Time against current

Substituting the given values:

Distance = 16 km/h * 4 hours

Now, let's calculate the time it takes for the steamship to cover the same distance with the current:

Time with current = Distance / Speed with current

Given that the speed with the current is 5.9 m/s, we can rearrange the formula to solve for time:

Time with current = Distance / Speed with current

Substituting the calculated distance and the given speed:

Time with current = (16 km/h * 4 hours) / 5.9 m/s

Calculation

Let's calculate the time it takes for the steamship to cover the same distance with the current.

Distance = 16 km/h * 4 hours = 64 km

Time with current = (64 km) / (5.9 m/s)

Converting km to m:

Time with current = (64,000 m) / (5.9 m/s)

Calculating the result:

Time with current = 10847.46 seconds

Rounding the result to the nearest tenth:

Time with current ≈ 10847.5 seconds

Answer

The steamship will take approximately 10847.5 seconds to cover the same distance with the current, if its speed with the current is 5.9 m/s.