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प्रश्न
In the following diagram of a wheelbarrow, 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 the same class of lever.
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उत्तर
In the diagram given below F shows the position of fulcrum and arrows marked at L and E indicate the direction of load and effort respectively.
It belongs to the second class of lever.
A nutcracker is one more example of the same class of lever.
संबंधित प्रश्न
What is a lever?
Give one example of a class I lever where mechanical advantage is more than one ?
Which type of levers have mechanical advantage always more than 1? Give reasons.
Give three examples for leavers of the third order.
Which class of lever found in the human body is being used by a boy when he raises the weight of his body on his toes?
The following belong to which class of lever?
Sugar tongs
The following belong to which class of lever?
Fore-arm
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.
A lever is used to multiply the force.
