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प्रश्न
The following belong to which class of lever?
Rowing of a boat
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उत्तर
Second-class of lever
संबंधित प्रश्न
Class II levers are designed to have ______.
Fig 3.17 below shows a lever in use.
(a) To which class of lever does it belong?
(b) If FA = 80 cm, AB = 20 cm, find its mechanical advantage.
(c) Calculate the value of E.
Give three examples for leavers of second order.
Which class of lever found in the human body is being used by a boy when he holds a load on the palm of his hand.
The following belong to which class of lever?
A fire tongs
The following belong to which class of lever?
Knife
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.
What is a lever?
A crowbar of length 100 cm is used to lift a load of 5 kgf. It has its fulcrum at a distance of 20 cm from the load. Calculate:
(i) the mechanical advantage of a crowbar and,
(ii) the effort applied at the other end.
What is a first-order lever?
