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प्रश्न
Name the class to which the following lever belong:
an oar rowing a boat.
उत्तर
an oar rowing a boat: Class I lever
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संबंधित प्रश्न
Describe three orders of levers giving an example of each. Draw neat diagrams showing the positions of fulcrum, load, and effort in each kind of lever.
Which class of lever has the mechanical advantage always less than 1? Give an example.
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Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a beam balance
How can you increase the mechanical advantage of a lever?
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.
State the principle of levers.
Name the three classes of levers and state how are they distinguished. Give two examples of each class.
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
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