text: Levers, pulleys, and wedges are simple machines. Does the concept of work explain why we use these machines in our daily lives, how they work, and why they work? Can you explain your reasons in two paragraphs, taking examples from daily life.\n\nThanks\nBarbie N \n\nThis question is no longer open for answering. Here's your chance to cast a vote if you haven't already.The voting period was extended because it ended in a tie.  \n \n \nEmail Question\n\nAdd to Watch List       \nAnswers\nAnswerer 1\n\nReport Abuse\n This sounds like a homework assignment, so I am not going to put it in the format you requested.\n\nYes, the concept of work does explain all of that. Without pulleys, levers, and wedges, we would have to lift 2 ton metal pieces without the use of cranes. You would be so surprised on how many things depend on pulleys, levers, and wedges.\n\nJ.N.S \n\n \n \n     Answerer 2\n\nReport Abuse\n Consider this-\nAs work done=Force*displacement.\nSuppose you have to move a 100Kg stone.Surely,it will be almost impossible for you to do so by only hands.\nNow take a 10m long lever,and hence\nForce=Work done/10\nThe work done is same,but you have to put ten times lesser force,with the help of lever.\nI hope it is clear now.