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प्रश्न
The following belong to which class of lever?
Fore-arm
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उत्तर
First-class of lever
संबंधित प्रश्न
Which class of lever will always have MA > 1 and why?
State the principle of a lever?
Class II levers are designed to have ______.
A man uses a crowbar of length 1.5 m to raise a load of 75 kgf by putting a sharp edge below the bar at a distance 1 m from his hand.
- Draw a diagram of the arrangement showing the fulcrum (F), load (L) and effort (E) with their directions.
- State the kind of lever.
- Calculate:
- load arm,
- effort arm,
- mechanical advantage and
- the effort needed.
Give three examples for leavers of 1st order.
The following belong to which class of lever?
A pair of scissors
The following belong to which class of lever?
Knife
Shears, used for cutting metals and scissors used for cutting clothes are both examples of levers of the first order. However, whereas the shears always have short blades and long handles, the scissors often have blades much longer than the handles. Explain, why this is so?
What is a lever?
What is a first-order lever?
