Which statement best describes why a machine is useful?
Asked by maham237 @ in Chemistry viewed by 317 People
Which statement best describes why a machine is useful? A machine does a greater amount of work than the amount of work that is done on it. A machine does a smaller amount of work than the amount of work that is done on it. A machine can decrease both the input force and the input distance needed to do a given amount of work. A machine can decrease either the input force or the input distance needed to do a given amount of work.