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प्रश्न
The following belong to which class of lever?
Pliers Tools
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उत्तर
First-class of lever
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संबंधित प्रश्न
Which class of lever will always have MA > 1 and why?
The lever for which the mechanical advantage is less than 1 has :
Give three examples for leavers of second order.
The following belong to which class of lever?
Human-arm
The following belong to which class of lever?
A claw-hammer
When we want to use a machine as a force multiplier, which class of lever should we preferably use? Give a simple diagram of such a lever.
The diagram shows the use of a lever.
- State the principle of moments as applied to the above lever.
- Which class of lever is this? Give an example of this class of lever.
- If FA = 100 cm, AB = 90 cm, calculate the minimum effort required to lift the load.
State the types (or kinds) of lever, and give two examples of each kind.
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?
