Physics
State the kind of lever which always has the mechanical advantage less than 1. Draw a labelled diagram of such a lever.
Related Questions
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.
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).
Explain why the mechanical advantage of the class III lever is always less than 1.
Classes III levers have mechanical advantage less than 1. Why are they then used?