Question
Name and define three classes of levens and give two examples for each kind
✓
Answer
(i) Lever of 1st order
A lever in which the fulcrum acts in the middle, the load on one side and the effort on the other side is called lever of the 1st order.
Scissors and crow-har are the examples of lever of 1st order.
(ii) Lever of 2nd order
A lever in which the load acts in the middle, the effort on one side and fulcurm on the other side is called lever of 2nd order.
A nut cracker and a wheel barrow are the examples of lever of 2nd order.
(iii) Lever of 3rd order
A lever in which effort acts in the middle, the load on one side and fulcrum on the other side is called lever of 3rd order.
A fire tong and fishing rod are examples of lever of 3rd order
A lever in which the fulcrum acts in the middle, the load on one side and the effort on the other side is called lever of the 1st order.
Scissors and crow-har are the examples of lever of 1st order.
(ii) Lever of 2nd order
A lever in which the load acts in the middle, the effort on one side and fulcurm on the other side is called lever of 2nd order.
A nut cracker and a wheel barrow are the examples of lever of 2nd order.
(iii) Lever of 3rd order
A lever in which effort acts in the middle, the load on one side and fulcrum on the other side is called lever of 3rd order.
A fire tong and fishing rod are examples of lever of 3rd order
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