Question

Помогите очень надо мотоциклист за первые 5 мин проехал 3 км , а за последующие 8 мин - 9,6 км и за последние 6 мин - 5,4 км . Определить среднюю скорость за всё время движения

Answer 1

Calculation of Average Speed

To determine the average speed for the entire duration of the motorcycle ride, we need to calculate the total distance traveled and the total time taken.

The motorcycle traveled 3 km in the first 5 minutes, 9.6 km in the subsequent 8 minutes, and 5.4 km in the last 6 minutes.

Let's calculate the total distance traveled and the total time taken:

- Total distance = 3 km + 9.6 km + 5.4 km = 18 km - Total time = 5 minutes + 8 minutes + 6 minutes = 19 minutes

To find the average speed, we divide the total distance by the total time:

- Average speed = Total distance / Total time = 18 km / 19 minutes

Now, let's calculate the average speed:

- Average speed = 18 km / 19 minutes ≈ 0.947 km/minute

Therefore, the average speed for the entire duration of the motorcycle ride is approximately 0.947 km/minute.