Warning: fopen(/var/www/storage/cache/cache.catalog.language.1767025354): 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: fopen(/var/www/storage/cache/cache.catalog.language.1767025354): 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 59Задача 11151.
Один конец стержня АВ закреплен шарнирно в точке А. К другому концу В привязан груз весом 50 Н. Стержень удерживается в равновесии веревкой ВС. Определить реакцию веревки ВС, если угол а = 30°.
