Solutions:
(a) The effort arm is the same length as the lever. The load arm is also greater than the effort arm. As a result, this lever is classified as a class II lever.
(b)
A lever of length 9 cm has its load arm 5 cm long and the effort arm is 9 cm long. (a) To which class does it belong? (b) Draw diagram of the lever showing the position of fulcrum F and directions of both the load L and effort E.