Working in a fast production line requires not only physical strength and quick reflexes but presence of mind. In instances when the operating machine jams, you need to decide quickly to either temporarily pause the production and call an expert to fix the machine to avoid further delays or fix the machine by yourself. The first option is the more sensible one.
The young men could not uproot the tree themselves so they asked the chief for help, the chief was able to uproot and bring the tree to its side so when the wife went to balance herself on the branches, she fell in a body of water below it.