text: levers, pulleys, and wedges are simple machines. does the concept of work explain why we use these machines in   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.  thanks barbie n   this 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.       email question  add to watch list        answers answerer 1  report abuse  this sounds like a homework assignment, so i am not going to put it in the format you requested.  yes, 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.  j.n.s            answerer 2  report abuse  consider this- as work done=force*displacement. suppose you have to move a 100kg stone.surely,it will be almost impossible for you to do so by only hands. now take a 10m long lever,and hence force=work done/10 the work done is same,but you have to put ten times lesser force,with the help of lever. i hope it is clear now.