Question

In fig shows a lemon crusher.

(a) In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E.

(b) Name the class of lever.

Answer 1

(a)
In a lemon squeezer, the lemon (load) is at the middle, the fulcrum of the squeezer is at one end and the push given by hand (effort) is at the other end. So, a lemon squeezer is a class II lever.
(b)
A lemon squeezer is a CLASS II lever. In a class II lever, the load is at the centre of effort and fulcrum.