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प्रश्न
Give three examples for leavers of second order.
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उत्तर
Levers of second order:
(i) Lock and key
(ii) Opener of soda water bottle
(iii) Closing a door
संबंधित प्रश्न
Name a machine to obtain gain in speed ?
Draw a diagram of a lever which is always used as a force multiplier. How is the effort arm related to the load arm in such a lever?
The lever for which the mechanical advantage is less than 1 has :
Give three examples for leavers of 1st order.
The following belong to which class of lever?
A see-saw
The following belong to which class of lever?
Rowing of a boat
In the diagram shown alongside a claw hammer, mark the fulcrum (F) and indicate the directions of load (L) and effort (E) with arrows. What class of lever is it? Give one more example of this class of 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.
The length of a nut-cracker is 12 cm. A nut, when kept at a distance of 4 cm from its fulcrum, requires an effort of 100 gf to crack it. What force will be required to crack the nut without using the nut-cracker?
