Warning: fopen(/var/www/storage/cache/cache.catalog.language.1766741779): failed to open stream: No space left on device in /var/www/opencart/system/library/cache/file.php on line 49Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 51Warning: fwrite() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 53Warning: fflush() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 55Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 57Warning: fclose() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 59Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/2075129-reshenie-20-2-1-iz-sbornika-reshebnika--1-910x1155.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/2075129-reshenie-20-2-1-iz-sbornika-reshebnika--1-130x165.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/2075129-reshenie-20-2-1-iz-sbornika-reshebnika--1-406x516.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: fopen(/var/www/storage/cache/cache.catalog.language.1766741779): failed to open stream: No space left on device in /var/www/opencart/system/library/cache/file.php on line 49Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 51Warning: fwrite() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 53Warning: fflush() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 55Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 57Warning: fclose() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 59Решение 20.2.1 из сборника (решебника) Кепе О.Е. 1989
20.2.1. Потенциальная энергия механической системы П = 15φ2 , где φ - в рад. Определить обобщенную силу, соответствующую обобщенной координате φ в момент времени, когда угол = 90°.
Решение 20.2.1 из сборника (решебника) Кепе О.Е. 1989
