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प्रश्न
Give three examples for leavers of the third order.
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उत्तर
Levers of third order:
(i) Cutting bread with a knife.
(ii) A boy writing on a piece of paper
(iii) Forceps
(iv) A fishing rod.
संबंधित प्रश्न
Name a machine to obtain gain in speed?
What is a lever?
State the principle of a lever?
Write down a relation expressing the mechanical advantage of a lever.
shows a nut cracker name the class of lever ?
The lever for which the mechanical advantage is less than 1 has :
The following are an example of levers. State the class of lever to which each one belongs giving the relative positions of Load (L), Effort (E), Fulcrum (F):
(i) Scissors (ii) Sugar tongs (iii) Nutcracker (iv) Pliers.
Draw a labelled sketch of a second class lever. Give one example of such a lever.
The diagram below shows a lever in use.
(i) To which class of lever does it belong?
(ii) If FA = 40 cm, AB = 60 cm, then find the mechanical advantage of the lever.
State the types (or kinds) of lever, and give two examples of each kind.
