Physics
The diagram below shows a rod lifting a stone.
(a) Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
(b) What class of lever is the rod?
(c) Give one more example of the same class of lever stated in part (b).
Related Questions
Both a pair of scissors and a pair of pliers belong to the same class of levers. Name the class of lever. Which one has the mechanical advantage less than 1?
Figure shows a lemon crusher.
(a) In the diagram, mark the position of the directions of load L and effort E.
(b) Name the class of lever.
State the kind of lever which always has the mechanical advantage less than 1. Draw a labelled diagram of such a lever.
Explain why the mechanical advantage of the class III lever is always less than 1.