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प्रश्न
Give three examples for leavers of 1st order.
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उत्तर
Levers of 1st order:
(i) Railway signal
(ii) Handle of water pump
(iii) Motor car foot brake
(iv) Nail cutter
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संबंधित प्रश्न
Name a machine to obtain gain in speed ?
shows a nut cracker name the class of lever ?
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The following belong to which class of lever?
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The following belong to which class of lever?
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The following belong to which class of lever?
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What is a lever?
The diagram shows the use of a lever.

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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?
