Question

Как с помощью нитки и секундомера найти площадь стола?

Answer 1

Нужно посчитать по формуле, какой период колебаний должен иметь маятник длиной нити 1 метр. 
С помощью секундомера и катушки ниток подобрать такую длину. Это будет метр. 
Его можно будет поделить на доли. 
И потом измерить длину и ширину стола. Перемножить, получить площадь.

Answer 2

Finding the Area of a Table Using Thread and a Stopwatch

To find the area of a table using thread and a stopwatch, you can follow these steps:

1. Measure the Perimeter of the Table: - Use a piece of thread to measure the perimeter of the table. Wrap the thread around the edges of the table and mark the point where the thread meets itself. - Measure the length of the thread using a ruler or a measuring tape.

2. Calculate the Perimeter: - Once you have the measurement of the thread, you can calculate the perimeter of the table by simply multiplying the measured length of the thread by 4, as the table is a four-sided object.

3. Measure the Time Taken for the Thread to Cover the Perimeter: - Use a stopwatch to measure the time it takes for the thread to cover the entire perimeter of the table.

4. Calculate the Area: - To find the area of the table, you can use the formula: Area = Perimeter * Time - Multiply the calculated perimeter by the time taken for the thread to cover the perimeter. This will give you the approximate area of the table.

5. Considerations: - It's important to note that this method provides an approximate area of the table and may not be as accurate as using standard measuring tools like a ruler or a measuring tape.

By following these steps, you can use a thread and a stopwatch to find the approximate area of a table.