give one word.
1)a machine which lets our job done with less effort.
2)a simple machine which changes the direction of force and makes work easy.
30 the arrangement to lift heavy loads.
Fulcrum (F), load (L), and effort (E) of a simple machine lies in a line. Among the given options which arrangement is correct for class II lever.
The efficiency of a machine is the ratio of the work done on the load by the machine to the work done on the machine by the effort.