Question

Средняя скорость тела за 20с.движения составила 4м/с .средняя скорость этого же тела за последние 4секунды движения составила 10м/с .определите среднюю скорость тела за первые 16 секунд движения

Answer 1

20с*4м/с = 4с*10м/с+16с*х м/с
x м/с=(20с*4м/с - 4с*10м/с)/16c = 0,25 м/с

Answer 2

Calculation of Average Speed

To determine the average speed of an object, we can use the formula:

Average Speed = Total Distance / Total Time

In this case, we are given the average speed of the object for two different time intervals: 20 seconds and 4 seconds.

Let's calculate the average speed for the first 20 seconds of motion:

Average Speed for the first 20 seconds = Total Distance / Total Time

We are given that the average speed for the first 20 seconds is 4 m/s. However, we don't have the total distance traveled during this time interval. Therefore, we cannot calculate the average speed for the first 20 seconds with the given information.

Next, let's calculate the average speed for the last 4 seconds of motion:

Average Speed for the last 4 seconds = Total Distance / Total Time

We are given that the average speed for the last 4 seconds is 10 m/s. Again, we don't have the total distance traveled during this time interval, so we cannot calculate the average speed for the last 4 seconds with the given information.

Unfortunately, without the total distance traveled during each time interval, we cannot determine the average speed for the first 16 seconds of motion.

If you have any additional information or if there is something else I can help you with, please let me know!