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प्रश्न
The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
- Give one more example of the same class of lever stated in part (b).
उत्तर
(a)
(b) This rod is a class II lever as load is between fulcrum and effort.
(c) An example of class II lever is a bottle opener.
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संबंधित प्रश्न
Name the class to which the following lever belong:
a nutcracker
Name the class to which the following lever belong:
a crowbar
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
State three differences between the three classes of levers.
A lever of length 100 cm has the effort of 15 kgf at a distance of 40 cm from the fulcrum at one end. What load can be applied at its other end?
Answer the following in a word or two or in a sentence.
Given an example of a Class I lever.
Draw a labelled diagram of a class II lever. Give one example of such a lever.
Class III levers have mechanical advantage less than one. Why are they then used?
Classify the following into levers:
A fishing rod
A ______ lever will always have M.A. > 1.
