Question

Из одного пункта в другой велосипедист двигался со скоростью 36 км/ч, а обратно – со скоростью 5 м/с. Определите среднюю скорость велосипедиста на всём пути.

Answer 1

Метры переводи в километры посредсивом умножения на 3,6, а дальше как среднее арифметическое - складывай и дели пополам.

Answer 2

Calculation of Average Speed

To calculate the average speed of the cyclist, we need to determine the total distance traveled and the total time taken.

Let's start by calculating the distance traveled in each direction:

- Forward direction: The cyclist traveled at a speed of 36 km/h. Let's convert this to m/s for consistency. 36 km/h is equal to 10 m/s. - Backward direction: The cyclist traveled at a speed of 5 m/s.

Now, let's calculate the time taken in each direction:

- Forward direction: We don't have the time taken in the forward direction, so we'll need to calculate it using the distance and speed. Let's assume the distance is d. Using the formula s = d/t, where s is the speed and t is the time, we can rearrange the formula to t = d/s. Therefore, the time taken in the forward direction is d/10. - Backward direction: We don't have the distance traveled in the backward direction, so we'll need to calculate it using the time and speed. Let's assume the time taken is t. Using the formula s = d/t, we can rearrange the formula to d = s*t. Therefore, the distance traveled in the backward direction is 5*t.

To calculate the average speed, we need to find the total distance and total time. The total distance is the sum of the distances traveled in each direction, and the total time is the sum of the times taken in each direction.

Let's denote the total distance as D and the total time as T.

- Total distance: D = d + 5*t - Total time: T = t + d/10

Now, we can calculate the average speed using the formula average speed = total distance / total time.

Let's substitute the values and calculate the average speed.

Calculation:

- Total distance: D = d + 5*t - Total time: T = t + d/10 - Average speed: average speed = D / T

Since we don't have specific values for the distance or time, we can't provide an exact numerical answer. However, we can provide the general formula and steps to calculate the average speed.

Please provide the specific values for the distance or time, and we can help you calculate the average speed using the given values.