What is a lever? A lever is a simple mechanism that can help make hard work easier to do. It has three important parts: load fulcrum effort Levers can help to lift heavy loads, as well as make ...

1 Belgorod State Technological University Named After V. G. Shukhov, Belgorod, Russia 2 Department of Mechanical Engineering, Energy Engineering and Management, University of Calabria, Rende, Italy ...