Lever resistance (or load). It is common to call the input force "the effort" and the output force "the load" or "the resistance." This allows the identification of three classes of levers by the relative locations of the fulcrum, the resistance and the effort: These cases are described by the mnemonic "fre 123" where the fulcrum is in the middle for the 1st class lever, the "r"esistance is in the middle for the 2nd class lever, and the effort is in the middle for the 3rd class lever. The lever is a movable bar that pivots on a fulcrum attached to
Henry W. Lever fame. In 1952, Marguerite died and Lever moved to Central Oregon in 1953, settling in Madras. He farmed briefly before moving into real estate as broker, which he continued until his death on July 1, 1980, after he was hit by a truck as he crossed the highway. Henry W. Lever Henry Work Lever (October 4, 1883 – July 1, 1980) was an American sportsperson and educator. He was a college football coach at four different colleges, as well as an athletic director, baseball coach, basketball coach, and track coach. Lever graduated from high school in Loveland, Ohio, in 1901